[HN Gopher] After a week at my mom's house I'm getting ads for h...
       ___________________________________________________________________
        
       After a week at my mom's house I'm getting ads for her toothpaste
       brand
        
       Author : deadcoder0904
       Score  : 303 points
       Date   : 2021-05-30 11:36 UTC (11 hours ago)
        
 (HTM) web link (twitter.com)
 (TXT) w3m dump (twitter.com)
        
       | sfblah wrote:
       | I truly don't get why all technically inclined people don't block
       | ads systematically. Ublock origin plus ghostery on computers. Pi
       | hole for mobile.
       | 
       | I realize he was at his mom's house, but when he gets home ads
       | should be blocked!
       | 
       | These types of stories absolutely bother me, but it's all totally
       | abstract because I don't see ads on the internet essentially
       | anywhere.
        
         | onion2k wrote:
         | Defending yourself against the efforts of Google's best minds
         | takes time and energy that could be spent in better ways.
         | Admittedly setting up uBlock is trivial, but going further
         | takes moderate effort that often isn't worth it, especially
         | considering Google have probably worked out how to track you
         | anyway.
        
           | LocalPCGuy wrote:
           | I took the time to setup PiHole at the network level, and
           | uBlock Origin on my browsers, but to your point, I don't
           | waste time trying to block YouTube ads on my
           | Chromecast/GoogleTV (which is collecting data on everything I
           | watch, not just YouTube, of course). I basically block the
           | low-hanging fruit, but still get semi-targeted ads fairly
           | often. But not quite to the extent I see described by people
           | that put no effort into it, so I do feel like it has some
           | affect.
        
       | n00bdude wrote:
       | The craziest thing I've ever seen with targeted advertising (on
       | iPhone) is when I was vacuuming the room one day & as soon as I
       | finished & opened Safari, was seeing ads for Vacuums
       | 
       | I hadn't even ever said the word 'vacuum' - iPhone literally
       | seemed to have cued the sound of the machine in the background.
       | And mind you it's an iPhone 7 with few apps & not some Pro Max
       | future phone ..
       | 
       | From that moment I've been convinced 100% microphones listening,
       | cameras probs watching.
        
         | n00bdude wrote:
         | Wow -2 downvotes for posting this really wow
        
         | TchoBeer wrote:
         | I've had this happen too, but I wonder how much of it is
         | confirmation bias. I see ads for random stuff all the time and
         | don't even think twice about it, but when we're talking about
         | buying a laptop for my sister and I get laptop ads that sticks
         | in my memory.
        
           | n00bdude wrote:
           | I would say it's possible but at least in this case very
           | unlikely.
           | 
           | It's not the first time this has happened but definitely the
           | most extreme case where I'd been alone for an extended time
           | (during Covid) and the ad was pretty much immediately after
           | vacuuming.
           | 
           | Of course no proof but like the saying if it looks like a
           | duck and sounds like a duck etc
        
         | aaron-santos wrote:
         | Happen to have an Apple Watch? Pure speculation, but I wouldn't
         | be surprised if accelerometer data could be used to classify
         | common activities.
        
           | n00bdude wrote:
           | No Apple Watch. Phone was just sitting in the room charging.
           | Finished vacuuming and bam - Dyson Vacuum Ad
        
         | vbsteven wrote:
         | A little anecdata: I was halfway reading this comment thread in
         | my iOS DuckDuckGo browser when I switched to the YouTube app
         | and refreshed a couple times to see what ads I got: some mobile
         | games, an online car dealership, a shower head and... a vacuum
         | cleaner. Then I came back and read this comment.
         | 
         | I'm not too worried though, probably coincidence. The only
         | place I really see ads anymore are on YouTube and most of the
         | time they are irrelevant.
        
       | [deleted]
        
       | jarenmf wrote:
       | I have a similar experience. I take all the precautions for
       | disabling ads. I opted out from all the targeted ads. And still
       | when my brother visits me, the ads on YouTube change.
        
         | kzrdude wrote:
         | why do you see youtube ads, if you tried disabling ads? Maybe
         | try ublock origin, the best ad blocker in terms of respecting
         | its users.
        
         | rantwasp wrote:
         | youtube is watching you. base on ip and the content consumed
         | they guess (and augment that guess with what they know about
         | your brother)
        
       | awb wrote:
       | Funny sidebar related to a top post yesterday about topical
       | engagement on Twitter, the author of the tweet describes his feed
       | as follows:
       | 
       | > If you like D&D consider sticking around, my account is 85%
       | tabletop RPG development and 15% leftist politics.
       | 
       | Kudos to the author for taking his audience what they should
       | expect after following. But isn't this a really narrow audience?
       | Why not have 2 accounts: robertgreeveathome and
       | robertgreeveatwork so I can pick which content I'm interested in?
        
       | jb1991 wrote:
       | Why is it that if I deny Instagram mic access on iOS these
       | "coincidences" stop happening? I'm convinced Instagram listens,
       | too many experiences to suggest otherwise. I've read all the
       | articles and tweets on this subject and yet remain convinced. And
       | when I deny mic access, issue goes away.
        
         | lucian1900 wrote:
         | They're certainly not above it, but constant recording would
         | destroy battery life and get noticed quickly.
        
       | CalChris wrote:
       | Correlation is causation.
        
       | Inhibit wrote:
       | My wife got a news article pop up because it included a Getty
       | licensed stock image that was from a location and time she had
       | physically been present at.
       | 
       | The article itself was unappealing in any other way.
        
       | arthur_sav wrote:
       | I went for a coffee with an old friend. He briefly mentioned he
       | got a new puppy in our conversation.
       | 
       | Note, i don't own a dog. I didn't google or search anywhere about
       | dogs or made any related purchases.
       | 
       | After i went home i opened facebook... low and behold, i see dog
       | toys ads.
       | 
       | This has happened a few times that it became plain creepy. That
       | was around 2014, i have since uninstalled facebook and barely
       | open the website.
        
         | shawnz wrote:
         | How often do you open Facebook and see ads about irrelevant
         | trash? Probably most of the time, right? So why is it so
         | surprising that occasionally that irrelevant trash might align
         | with something that happened in your day?
         | 
         | Another thing to consider: How many times do you hang out with
         | a friend and not notice any particular connection in the ads
         | you see later? Again I'm guessing that's the case most of the
         | time. If they really had such sophisticated matching technology
         | then why not do it all the time?
        
         | planet-and-halo wrote:
         | That's geolocation. They knew your friend got a dog, they knew
         | you were in the same location, now they assume you might be
         | interested in dogs too. I still think it's super creepy and
         | invasive, but I think most likely they aren't listening to
         | microphones.
        
           | criddell wrote:
           | > I think most likely they aren't listening to microphones
           | 
           | Do you think that's a line that even Facebook wouldn't cross?
        
             | planet-and-halo wrote:
             | Morally? No. But I think they'd fear the legal
             | repercussions of high-level company officers making public
             | statements that they aren't doing it. I also think one of
             | the many privacy researchers doing traffic sniffing
             | probably would have picked up on some signature pattern. Is
             | it possible I'm wrong? Of course. But if I had to make a
             | bet at this moment in time, that's how I'd bet.
        
               | arthur_sav wrote:
               | I have a suspicion on how they're doing it. Every time
               | this has happened there was a tv around.
               | 
               | 1. Use smart TVs to listen for ad relevant keywords. 2.
               | TV manufacturers sell the data to FB. 3. FB gets keywords
               | & geolocation data, combines it with it's won data and
               | voila. You know these 2 FB users where near this place
               | and dog stuff was discussed.
               | 
               | Pretty safe and distanced from a scandal and yet very
               | effective.
        
           | TchoBeer wrote:
           | or, OR!, more likely he was connected to his friend's wifi
           | and it uses IP to group people.
        
           | tzs wrote:
           | Or Facebook already knew that he was friends with the person
           | who got the new dog, knew that person had a new dog, and
           | started showing dog-related ads to _all_ of the people on
           | Facebook that they knew were friends with the new dog owner.
        
       | [deleted]
        
       | dotancohen wrote:
       | My wife's family is from Romania. A few months ago while eating
       | with our children we were discussing flags, and I mentioned that
       | Chad's flag is identical to the Romanian flag. The wife's phone,
       | with Facebook and Whatsapp and a million junk apps installed was
       | nearby.
       | 
       | The very next day I open Youtube and one of the suggested videos
       | is an explanation of the Chad and Romanian flags. I had not
       | searched for anything relevant, and upon asking the children and
       | wife (only people present) if they had mentioned the conversation
       | to anybody or looked for something online, they say that they
       | hadn't. And I believe them, I'm always presenting to them small
       | bits of information about the world even though I know that 99%
       | of it gets forgotten immediately.
       | 
       | That was a few months ago.
       | 
       | Lately I have been unable to fall asleep. I refuse to use the
       | phone or any electronic devices after 12 (and wear Gunnars after
       | the sun goes down) but in any case I lie in bed sometimes until
       | the sun rises. I mentioned this to one of my kids (5 years old) a
       | few days ago, I don't know whose phones were where. But the very
       | next day I get an advertisement for "Medicines for those
       | sleepless nights". Now maybe, just maybe, one of the older
       | children or the wife used a phone late at night that specific
       | night. But it seems far too far fetched to imagine that this
       | happened exactly the day after I mentioned that I sometimes don't
       | sleep.
       | 
       | I am 100% convinced that our phones are listening for keywords
       | and assigning us to categories based on that.
        
         | karaterobot wrote:
         | A lot of people here are saying this isn't the case, that
         | seeing seemingly targeted ads for things you discussed in the
         | presence of a phone is just a coincidence. I've also read a few
         | articles about this, and their conclusion is the same, so I
         | guess it's common knowledge.
         | 
         | What I always wonder is: why not? We have the technology to
         | recognize keywords in speech, the ability to passively identify
         | handsets, and we certainly have the technology to target ads to
         | people based on keywords. Unless there is no money to be made
         | doing it, why the hell wouldn't your phone be overhearing your
         | conversations and serving ads to you? Is it that we think
         | Google and Apple and Amazon and Facebook and various ad
         | platforms respect our privacy too much to do something that
         | sinister?
        
           | Infinitesimus wrote:
           | Implementation will be hard. Having the mic on all the time
           | drains battery. Storing the data offline and uploading
           | discreetly when the device is plugged in will be discovered
           | quickly. I think on-device voice recognition has come a long
           | way nowadays so with more powerful phones, one of the big
           | companies might try this soon.
        
           | tinus_hn wrote:
           | It's exceedingly unlikely to be this kind of conspiracy and
           | far more likely someone from the same IP address looked up
           | related information.
        
           | Hamuko wrote:
           | Siri can't even tell if I'm saying "apartment lights" or
           | "Obama lights" when I'm talking directly to it. And if it's
           | not even hard enough to transcribe all the ways all the
           | people across the globe might pronounce words in all of the
           | languages they speak, there's the problem of deriving who
           | said it (was it you or was it the TV?) and deriving what was
           | the expressed sentiment.
           | 
           | It's so much cheaper and technologically easier to parse your
           | browsing history and parsing things you enter in as text than
           | it is to parse voice. Especially when you don't own the
           | platform your software is running on (what would need to
           | happen for Apple to allow Facebook 24/7 access to the iPhone
           | microphone)?
           | 
           | Also, Google/Apple/Amazon/Facebook don't have to respect our
           | privacy, but they do need to respect privacy laws like the
           | GDPR, so they can't actually tap your voice without your
           | consent unless they want to risk actual billion dollar fines.
        
         | gruez wrote:
         | >I am 100% convinced that our phones are listening for keywords
         | and assigning us to categories based on that.
         | 
         | I'm unconvinced. If this is happening to everyone, surely it's
         | possible to conduct a randomized controlled trial? Despite
         | that, we only have years of anecdotes but zero such trials.
         | Moreover, this directly goes against the security models of
         | both android and ios, which both require microphone permissions
         | for apps to listen in on stuff. ios goes one step further and
         | puts a recording indicator when the microphone is in use, so
         | it's hard to imagine how these apps are are even listening in
         | the first place.
        
           | dotancohen wrote:
           | The wife gives everything every permission it wants. She has
           | no interest in protecting "privacy", the concept is
           | meaningless to her. She wants Facebook and games and icon
           | packs. How could installing an icon pack be "dangerous"?!?
           | I'm the bad guy for mentioning it.
           | 
           | Her phone is a Samsung A50 probably Android 10 or 11.
           | 
           | > we only have years of anecdotes but zero such trials.
           | 
           | There's some quip about lack of evidence not equating
           | evidence of lacking. But more importantly: at some point the
           | quantity of individual anecdotes, along with the technical
           | ability and interest of the parties involved, become data in
           | and of itself.
        
             | gruez wrote:
             | >There's some quip about lack of evidence not equating
             | evidence of lacking.
             | 
             | It's not, but the burden of proof is still there. It's up
             | to the claimant to prove that some activity exists, not for
             | it to be assumed to be true and for others to prove it's
             | false.
             | 
             | >But more importantly: at some point the quantity of
             | individual anecdotes, along with the technical ability and
             | interest of the parties involved, become data in and of
             | itself.
             | 
             | Ever heard of the saying "the plural of anecdote is not
             | data"? I think this applies here. Specifically, I think
             | this sort of phenomena is highly susceptible to publication
             | bias/p-hacking. ie. you only remember/hear about all the
             | instances that confirms this theory, but not all the
             | instances where nothing happened. With billions of
             | facebook/google users worldwide, and dozens of possible
             | "topics" being generated per day, I'd expect millions of
             | anecdotes to surface just by random luck alone.
             | 
             | Finally, if we're going by "a lot of anecdotes is proof in
             | and of itself", what does this say about other paranormal
             | phenomena? eg. ghosts or bigfoot? Those have a lot of
             | anecdotes as well.
        
               | dotancohen wrote:
               | > It's not, but the burden of proof is still there. It's
               | up       > to the claimant to prove that some activity
               | exists, not for       > it to be assumed to be true and
               | for others to prove it's false.
               | 
               | Of course, and I claim no proof. But we have no proof of
               | gravity either, only very strong suspicion supported by
               | loads of experimental data. Leaking a single keyword per
               | day or per week would greatly enhance such systems'
               | capabilities yet remain very very difficult to detect.
               | Perhaps 52 new keywords per year is enough for them.
        
               | gruez wrote:
               | >But we have no proof of gravity either, only very strong
               | suspicion supported by loads of experimental data.
               | 
               | Isn't that the difference between gravity and "facebook
               | is surreptitiously listening to our conversations", that
               | the former has loads of high quality evidence backing it
               | up and can be trivially demonstrated and the latter
               | doesn't? If someone claimed there was an invisible force
               | that we don't know about, but you can't demonstrate it
               | and the only evidence we have of it is various anecdotes,
               | I'd be skeptical as well.
               | 
               | >Leaking a single keyword per day or per week would
               | greatly enhance such systems' capabilities yet remain
               | very very difficult to detect. Perhaps 52 new keywords
               | per year is enough for them.
               | 
               | I suspect you're getting some of the threads mixed up.
               | Other commenters have mentioned about this sort of
               | activity being detectable via network monitoring, but I
               | never made such claim. Instead, I claimed that such
               | activity would be detectable by the operating system
               | itself, due to the microphone activity indicators. That's
               | not something you can sneak one word at a time, because
               | you need to be listening all the time to pick up
               | keywords.
        
         | WrtCdEvrydy wrote:
         | I think you're not off the mark a lot.
         | 
         | I do think there's a lot of assumed knowledge gathered from
         | your actions... my computers don't have microphones and I keep
         | my phone in a box when I sleep (because I am that paranoid),
         | but I started getting those when I switched from a day job to a
         | night job.... being online on your off hours may class you as
         | "having trouble sleeping"
        
         | teachingassist wrote:
         | > I mentioned that Chad's flag is identical to the Romanian
         | flag.
         | 
         | I find this unconvincing evidence because: you already knew
         | this (somehow) and found it an interesting piece of trivia to
         | bring up at that time. It's unsurprising, then, that a YouTube
         | channel also finds it interesting.
         | 
         | It's very likely that you were influenced to remember this
         | piece of trivia because of something you observed, like (for
         | example) subconsciously spotting an advert.
         | 
         | These are common advertisements. You only noticed them the next
         | day because you talked about them the previous day.
        
           | dotancohen wrote:
           | Conversation at the dinner table often leads to loose
           | tangents. I'll be unable to convince _you_ that this is a
           | subject that had no recent online evidence, but _I'm_
           | sufficiently convinced knowing the whole situation and aware
           | of what information _is_ shared.
        
         | Kiro wrote:
         | As the Twitter thread says this has been debunked many times.
         | People have been sniffing traffic for years trying to find
         | evidence of this. However, the point of the thread is that they
         | don't need to since they have other, possibly more sinister,
         | ways to target you.
        
           | dotancohen wrote:
           | Other ways of targeting may yield other results, but surely
           | there is value in verbal keywords as well.
           | 
           | In fact, not only keywords but even by just knowing verbal
           | habits such as phrases used, frequency of curse words,
           | accents, etc, could be very valuable in targeted marketing.
           | The couple who regularly say phrases such as "please prepare
           | the tea, dear" may be better to target different ads to than
           | the couple which regularly say "wazzup dog".
        
             | Kiro wrote:
             | Yes, but when you can get similar results using completely
             | "legal" methods that people, even when confronted with
             | straight facts like this, don't seem to care about - why
             | would you risk it?
        
               | dotancohen wrote:
               | Did the US government use completely "legal" wiretapping
               | methods?
               | 
               | And their is nothing illegal about listening for
               | keywords, even if the companies currently deny doing so.
               | There really is no risk: The people up in arms about
               | privacy will remain up in arms, and the 99% who don't
               | care will continue not caring.
        
         | setBoolean wrote:
         | Wouldn't it be possible that the wife looked up the flag topic
         | on Google after the discussion and that it got mixed up as both
         | devices shared the same (external) IP during that time? And
         | because of that you got this suggestion? Just playing devils
         | advocate here.
        
           | dotancohen wrote:
           | That is completely possible, and I did ask her. She, and the
           | kids, say that they hadn't.
           | 
           | And honestly, I don't think that they had anyway. Maybe one
           | of the kids will take an interest in dad's boring facts about
           | the world at dinner, but the wife has long since stopped even
           | listening!
        
         | shoto_io wrote:
         | From the original twitter thread posted here on HN as link for
         | discussion:
         | 
         |  _> First of all, your social media apps are not listening to
         | you. This is a conspiracy theory. It 's been debunked over and
         | over again.
         | 
         | But frankly they don't need to because everything else you give
         | them unthinkingly is way cheaper and way more powerful._
        
         | fsflover wrote:
         | > I am 100% convinced that our phones are listening for
         | keywords and assigning us to categories based on that.
         | 
         | If would like to defend yourself, consider Librem 5 or
         | Pinephone, which have hardware kill switches for microphone and
         | other things.
        
         | Philip-J-Fry wrote:
         | I mean, I'm pretty sure we know our phones aren't listening. We
         | have privacy controls for microphone access and people are
         | checking this stuff pretty regularly because they're scared of
         | it too.
         | 
         | If that video about flags appeared when you hadn't talked about
         | flags would you have thought about it? Probably not. You only
         | made a note of it because you'd talked about flags and it
         | "confirmed" your suspicions about phones listening to us.
         | 
         | What initially led you to talk about flags? Was flags something
         | you'd actually looked at before? Maybe, but again you probably
         | never thought anything of it and you probably can't remember
         | whether you did or not. But youtube would remember.
         | 
         | Advertisers also use so many different things about you. They
         | estimate or know your age, interests, location, eating habits,
         | etc.
        
           | dotancohen wrote:
           | Without a doubt I have an interest in history and an interest
           | in geography, and Youtube knows that. It is the timing and
           | the specificity that is so suspect. This video was also not
           | from one of the few channels that I watch, though obviously
           | it has content of a similar genre.
        
           | g8oz wrote:
           | I'm sure that smart TVs in particular are definitely
           | listening.
        
         | Wowfunhappy wrote:
         | If this was a widespread practice, don't you think we'd have
         | found hard evidence by now? That's an awful lot of audio data
         | to constantly process or upload, and as locked down as some
         | modern devices are, we still have wireshark, iOS jailbreaks,
         | and rooted Android phones. And, we have security researchers
         | and other curious hacker-types who are constantly probing for
         | stuff.
        
           | dotancohen wrote:
           | I think that enough anecdotes do add up to data. Hard
           | evidence? Until a corporate Snowden comes along we may never
           | know, just as we suspected similar things about government
           | surveillance but had no hard evidence until Snowden surfaced.
        
             | Wowfunhappy wrote:
             | Those anecdotes can also be explained by psychological
             | factors.
             | 
             | PRISM was operating at the network level, as opposed to
             | widely-available consumer devices. It's the difference
             | between tapping a phone line at the call center, and going
             | into every individual person's house and planting a bug
             | under their counter.
        
             | isbvhodnvemrwvn wrote:
             | It should be extremely trivial to show that some data is
             | traversing the network you fully control.
             | 
             | While I would understand refusal to do so from non-
             | technical crowd (e.g /r/technology or similar cesspolls),
             | it's very difficult for me to understand this argument on
             | hackernews.
        
               | Wowfunhappy wrote:
               | > It should be extremely trivial to show that some data
               | is traversing the network you fully control.
               | 
               | I obviously agree with you as the GGP, but the logical
               | counterargument would be, these phones upload so much
               | data in the normal case that it's hard to know what's
               | what. And all of it is encrypted with https, often with
               | certificate pinning.
               | 
               | But, well, audio files are really quite large, at least
               | in the quantities we're discussing. And so in order for
               | the data transfer to go unnoticed, the phone would have
               | to be processing it locally, to decide what to upload.
               | That would be a lot of work, in terms of cpu usage and
               | battery life, and that, again, should have caught some
               | researcher's attention.
               | 
               | Suffice to say, while I don't think any of this is
               | feasible today, this is why locked-down devices and
               | certificate pinning scare me. Audio is expensive, but you
               | can learn a lot with a keylogger.
        
         | KMag wrote:
         | My wife, I, and some of our friends have also had this sort of
         | gut feeling. However, I suspect it's a combination of selective
         | memory (how many thousand random things have been thrown at you
         | by advertising/YouTube suggestions in the past couple months?)
         | and data mining being scarily more effective than we suspect.
         | 
         | Maybe the sorts of things or the pace of your web browsing
         | early in the morning indicates grogginess. Maybe the machine
         | learning has even picked up on some pattern like insomniacs
         | clicking on a higher percentage of war and poverty news stories
         | vs. celebrity gossip stories. It's also possible the ML has
         | also used your browsing habits to pick up on the cause of your
         | insomnia, while you think the advertising is due to your
         | speaking about its symptoms.
         | 
         | Also, there's a bandwidth/battery life tradeoff associated with
         | 24/7 sophisticated voice conversation tracking. It would
         | certainly take a lot of bandwidth to send everything to Google,
         | and the amount of processing power to filter for conversations
         | about thousands of potential advertising products is
         | significantly more than just listening for "Hey Siri". This is
         | especially true of the amount of semantic processing to know
         | that, unlike 99% of the mentions of "Chad" in English (and
         | maybe Romanian) conversation, "Chad" isn't referring to the
         | dude down the hall who makes a mean quinoa ceviche. I would
         | expect that the kind of sophisticated processing we're talking
         | about would kill a phone battery pretty quickly, and offloading
         | it to the cloud would cause operators to start complaining
         | about the bandwidth usage. Though, I could be wrong.
         | 
         | Edit: so, I think something spooky is going on, but I suspect
         | that machine learning is sometimes just spookily accurate. I
         | think it's Target that mixes in other coupons with baby product
         | coupons when its ML has figured out a woman is 2 months ahead
         | of giving birth, to make it seem less spooky.
        
           | dotancohen wrote:
           | Yes, the sleeping pills are far easier to find mundane
           | explanations for than the Flag video suggestion. Either one
           | individually could be a fluke. But together a pattern is
           | beginning to emerge.
        
         | crvdgc wrote:
         | Some devices have physical kill switches for cameras and mics.
         | Whether or not the eavesdropping theory is true, such devices
         | can help you deal with your immediate worries.
        
           | beermonster wrote:
           | On MacOS there are great tools from objective-see. One of
           | them, OverSight, notifies you when your mic or webcam is
           | activated.
           | 
           | Failing that some tape works quite nicely!
           | 
           | QubesOS allows you to assign certain devices to Xen VMs ,
           | compartmentalising your hardware. No spying if there is
           | audio/video device (a Xen hypervisor escape not withstanding)
           | available to the guest OS.
           | 
           | I do like devices with physical kill switches. Some USB
           | sticks and devices by Purism.
        
       | greatquux wrote:
       | I am just amazed people pay attention to the ads. I'm sure this
       | is happening to me but my brain has gotten so good at filtering
       | them out that I have no idea what they're even trying to sell me!
        
         | tzs wrote:
         | There used to be a belief that if you were exposed to am image,
         | say someone drinking a prominently labeled Coca-Cola, it would
         | make you want a Coke even if the image only flashed by so fast
         | that you were not even consciously aware you had seen it such
         | as if the image was a single frame inserted in a scene in a
         | movie.
         | 
         | This was debunked.
         | 
         | There is, however, something sort of in the same ballpark that
         | has been reproduced and does show that your brain does have an
         | astounding capacity to at least partially remember images seen
         | only briefly.
         | 
         | Take a large collection of images of a variety of ordinary
         | things. Pictures of things like a bunch of bananas, a dog
         | catching a Frisbee, a cat sunning itself near a window, kids
         | waiting for a school bus, a cat pouncing on a mouse, someone
         | eating a banana, yadda yadda.
         | 
         | Divide the collection randomly into two equal sets, A and B.
         | 
         | Show test subjects the images from set A serially, letting them
         | see each image for a hundred milliseconds or two, with
         | occasionally rest breaks if the image set is large (I believe
         | this has been with image sets up to 10K in the total
         | collection, so it can take quite a while to go through set A).
         | 
         | If you then tested people on how well they could recall these
         | images, they would suck at it. Ask them to describe all the dog
         | images they saw, for instance, and they will only recall a
         | small fraction of them.
         | 
         | Where it gets interesting is if instead the test you do is at a
         | later time you randomly pair up each image from set A with an
         | image from set B, and serially show the subjects these pairs in
         | random order and with the random left/right placement, and ask
         | the subjects to identify which of the two images is one they
         | have seen before.
         | 
         | People get it right some astoundingly high percentage of the
         | time, like 90% after several days. They might not really
         | "remember" most of the A set in the sense that they can
         | purposefully recall them, but apparently we do automatically
         | and effortlessly store something that is good enough to let us
         | tell which of two images is the one we've seen before.
         | 
         | I wonder if this effect would apply with ads? You see a banner
         | ad in passing for brand X molten boron, not paying attention to
         | it. This doesn't make you subconsciously want to go buy the
         | product--that was the old debunked subliminal advertising
         | theory.
         | 
         | But later, you actually need some molten boron and so head out
         | to the store. They have brands X and Y. I wonder if because of
         | the banner ad you saw a few days ago, you'd recognize brand X
         | as one you have seen before and be more likely to choose it
         | over brand Y.
        
           | mattkrause wrote:
           | The classic paper on this is Standing's 1973 "Learning 10,000
           | pictures."
           | 
           | The title really says it all: subjects shown up to 10,000
           | pictures (once, for a five seconds apiece) remembered a
           | substantial fraction of them two days later. This is somewhat
           | specific to images (and even moreso for "vivid" ones); people
           | did worse with dictionary words.
           | 
           | However, one important detail is that subjects were told to
           | pay careful attention to the stimuli; they were repeatedly
           | reminded that a memory test was coming up.
           | 
           | PDF: https://www.sas.upenn.edu/psych/rust-
           | lab/publications/standi... Journal Page: https://www.tandfonl
           | ine.com/doi/abs/10.1080/1464074730840034...
        
             | Tarsul wrote:
             | yeah and then there was this other study where people had
             | to count how often people would pass the ball in a video
             | and no one noticed that there was a guy in a gorilla custom
             | going around, because no one cared about that (they were
             | distracted by counting). I think this is similar to how we
             | usually try to avoid looking at ads in the internet: it's
             | not what we are interested in at that moment!
             | https://www.livescience.com/6727-invisible-gorilla-test-
             | show...
        
         | Benjamin_Dobell wrote:
         | I'm with you, but I'm just _assuming_ we 're a minority.
         | Otherwise all those companies paying big bucks for
         | "boosted"/"pro" listings are _really_ throwing money down the
         | toilet.
         | 
         | Seriously, go visit Stackoverflow Jobs. Start scrolling. It
         | takes me so much conscious effort to read those listings with
         | the yellow background. I'm specifically _trying_ to read every
         | listing and I keep missing them. They just look like rubbish
         | ads, so my brain has been trained to ignore them.
         | 
         | It's the same experience with custom adverts on eBay or real
         | estate websites. Any non-standard listing, I keep missing and
         | have to scroll back through several times to "find" them.
        
         | prepend wrote:
         | For me, it's not paying attention to the ads. I never have. I
         | haven't clicked on an ad in decades.
         | 
         | My interest is in the manipulation taking place on all the
         | people who do click on ads, and the likely negative affect on
         | society.
         | 
         | Obviously, enough people click on ads to make it worthwhile for
         | the advertisers. And this is despite all the people who think
         | ads don't work on them.
        
           | chasebank wrote:
           | I'd wager you've clicked hundreds of ads here, just on hacker
           | news! You might have not known they were ads but they were
           | ads none the less.
        
             | prepend wrote:
             | Perhaps, we'll never know as there's lots of types of ads.
             | 
             | I was referring to the ads described in OP's article- ones
             | that show up around "real" content.
             | 
             | Of those ads, I've clicked none.
        
         | edejong wrote:
         | That's exactly the intention. There should not be a conscious
         | connection between the ads and the actions, because it would
         | reduce the effectiveness.
         | 
         | Thing is, your brain does all the processing: it reads the
         | label, it detects the colors and brands, it associates it with
         | previous experiences and reinforces all these connections.
         | Then, at the last moment it decides not to engage the
         | neocortex, so you're not consciously aware of it.
        
           | brundolf wrote:
           | I'll notice the look and feel and signifiers, but I go out of
           | my way to avoid noticing the actual company name. After the
           | ad is gone I'll sometimes try and recall the brand just to
           | make sure that I can't. Usually I can't.
        
             | edejong wrote:
             | Doesn't matter at all. If your eye can see it, it goes
             | through the object detection process. Attention is not
             | necessary. In particular, the brain associates it with all
             | adjacent information.
        
             | cinntaile wrote:
             | Does it matter though? Your brain will recognize it based
             | on the look and the feel, isn't that enough when you're in
             | a store?
        
             | rambambram wrote:
             | For the scarce Youtube ad I get, I made it a habit to close
             | one eye, focus next to the video, not see the ad, and only
             | look at the 'skip'-button. What also comes in handy is
             | having a hardware volume knob for my speakers; with one
             | tactful twist of my fingers I turn the volume to zero. This
             | way, I actively prevent ads from entering my brain. See no
             | evil, hear no evil.
        
         | maccard wrote:
         | I don't pay attention to the ads I see either, but occasionally
         | they are a little on the nose and I remember them. It's natural
         | that you could recall one or two ads a year that came up at
         | "the right time"
        
         | lawn wrote:
         | Ads? What ads? I don't watch TV and I have adblock for
         | everything.
         | 
         | Last time was probably when I went to cinema, which is well
         | over a year ago.
        
           | freeflight wrote:
           | The advertising sector has adapted: On Reddit, Twitter and
           | plenty of other social media, a whole lot of content is ads
           | but veiled as memes.
        
         | titzer wrote:
         | A couple months back, I needed to buy car insurance. Literally,
         | for six months, I had been being bombarded by Liberty Mutual.
         | But I didn't google for car insurance. I the shitstorm that
         | would create. Instead, I thought of 3 of the major ones, priced
         | them out from their own websites and got the cheapest one. One
         | mistake I did make was I went to one of those "compare rates"
         | meta-sites, and the bastards wouldn't leave me alone for a few
         | weeks. One of the companies I priced asked if I had previously
         | had them. I told the truth and a local agent sent me email
         | after email until I told them I already had bought a new plan.
         | 
         | It wasn't until some time later when I saw my next Liberty
         | Mutual ad that I realized that they had never even crossed my
         | mind during this whole process. Ha! I still chuckle. Now I am
         | even more conscious to avoid things that I see a ton of ads
         | for. I hate ads!
        
         | reedf1 wrote:
         | It's amazing how few people believe they are affected by ads.
         | You must wonder why it's the most lucrative business in the
         | world?
         | 
         | I'm sure I've also read somewhere that those most affected by
         | ads are those who believe they are not affected by them.
        
           | [deleted]
        
           | fortran77 wrote:
           | Exactly. The people here who believe they're too "smart" to
           | be influenced are probably the biggest suckers!
        
           | manmal wrote:
           | I'm one of those who claim to not (or seldom) be affected by
           | ads, and I'd say my payment history can back that up. I
           | usually buy based on other people's experiences, eg by
           | scanning 1-star reviews for red flags, or asking people I
           | know about their experiences. When it comes to groceries I
           | just buy products with certain traits (vegan, low on sugar,
           | organic, low waste,...) which usually limits choices to
           | products which are not advertised. Same thing with
           | organic/sustainable fashion.
        
           | Tarsul wrote:
           | doesn't really matter since it's a numbers game: Even if the
           | majority would be totally unaffected by ads, that would still
           | leave a (significant) minority being affected, so still a
           | very interesting business opportunity (which it is, of
           | course). Nonetheless, I would count myself as one who is
           | rather unaffected by ads, but still ads do give at least a
           | presence to products that would otherwise get completely
           | unnoticed. And if you don't drink beer and want to buy beer
           | for friends who come over what could go wrong with the brands
           | that are always on TV?
        
       | akeck wrote:
       | A relative got immediately targeted by FB ads for a product we
       | had just talked about on speakerphone.
        
         | paulcole wrote:
         | What products have they said and then not seen ads for?
        
         | jonny_eh wrote:
         | It's coincidence mixed with him talking about things that
         | interest him, which are of course advertised to him.
        
           | bryanrasmussen wrote:
           | this scenario would fit the parent comment's description:
           | 
           | speaker 1: I just bought a Turbobot 3000, you should get one
           | they're great.
           | 
           | Speaker 2 thinks to himself: What the hell is a Turbobot,
           | anyway speaker 1 is such a jerk and we have nothing in common
           | anything he likes I'm sure to hate. If only he wasn't my
           | brother in law.
           | 
           | Speaker 2: Sure thing.
           | 
           | Speaker 2 hangs up phone, goes on facebook, sees ad for
           | Turbobot 3000.
           | 
           | on edit: of course I assume speaker 1 is not the parent
           | commenter, as speaker 2 no doubt has multiple relatives.
        
       | lawlorino wrote:
       | An alternative and much more boring explanation for this and
       | others' stories in the replies is confirmation bias.
        
       | callesgg wrote:
       | Or mabye he used the Wi-Fi and they detected that his phone was
       | loggedin with the same ip. I don't buy that people are being
       | corrected on physical location. Some services probably do, but
       | the normal ad network's? Nah. where would they get my actual
       | location data from.
        
       | pb060 wrote:
       | Ok, now I want to know who the hell around me has a bunion.
       | Please Social Media Algorithm, if you read this comment and can
       | cross my HN account with whathever other information you have, I
       | don't need a bunion remedy!
        
       | foreigner wrote:
       | This Twitter thread is hilarious. The author decries advertisers
       | for evilly collecting all the world's information in order to...
       | sell him toothpaste? The cherry on top is at the end when he
       | discovers that his tweets have gathered some attention, he uses
       | those eyeballs to flog his role-playing game and his brother's
       | book.
        
       | Traubenfuchs wrote:
       | A friend received hair loss ads after using wifi at my place -I,
       | the one with hair loss, use an ad blocker.
       | 
       | Reddit app shows me ads for US restaurants. I live in Europe.
       | 
       | AdTech is depressingly bad. You tell me the smartest and best
       | paid software engineers in the world work on this mess?
        
         | diogenescynic wrote:
         | Your friend mentioned the ad to you, so it kinda worked? It did
         | find its targeted audience.
        
         | wyager wrote:
         | > You tell me the smartest and best paid software engineers in
         | the world work on this mess?
         | 
         | I'm pretty sure adtech doesn't pay the best.
        
         | barbarr wrote:
         | AdTech just shows ads from the highest bidder. If a bicycle
         | advertiser overpaid for ads and decided that they need millions
         | of impressions, whereas a highly targeted toothpaste brand
         | decided they need 1000 highly targeted impressions, you're
         | going to see the bicycle ad first. Most advertisers just spray
         | ads at people, so as a user, you end up seeing useless
         | untargeted ads more than you see highly targeted ones.
        
         | freeflight wrote:
         | Any chance you are browsing with a VPN? If all AdTech was as
         | bad as you claim it to be, then Google, and the whole sector,
         | wouldn't be as massive as they are today.
         | 
         | Just like with anything: There are implementations that don't
         | work at all/are easily fooled, but there are also systems
         | running so effective, that you most likely don't even notice
         | their "invisible hand" guiding you or at least guiding what you
         | see.
        
       | shoto_io wrote:
       | I wonder: is this a bad thing? Obviously, the tech wasn't smart
       | enough to show him better ads.
       | 
       | It put him into to the same bucket as his mum. And that is
       | clearly not very "personalized," not targeted.
        
       | 1MachineElf wrote:
       | When I moved into a house with someone who has a workshop, I
       | started getting a lot of advertisements for tools.
        
       | titzer wrote:
       | What this person mentions is really just the tip of the iceberg.
       | They link credit cards to phones because GPS coordinates and WiFi
       | networks nail down your address, which they cross-reference with
       | the billing address of credit cards.
       | 
       | They know who are you sleeping with, or if you aren't sleeping
       | with anyone. They know your age and all the insecurities you have
       | about your body, not to mention your health problems and every
       | embarrassing fact about you. They know where you've been, where
       | you're planning on going, and your political preferences. They
       | know if you've donated to political parties, attended political
       | rallies, if you voted, where, and when. And they know all your
       | friends.
       | 
       | And we just let them do this. As tech people, we built this. And
       | all the along the way we told ourselves it was fine, because it
       | was very lucrative for the entire ad tech/fintech/startup
       | ecosystem, and us personally.
        
         | prox wrote:
         | From the outset people have enjoyed free services, and free
         | means and ment "paid for by advertisers", facilitated by Big
         | Tech.
         | 
         | We created an economic system that is at times both parasitic
         | and/or symbiotic in nature. We enjoy the free, we enjoy the
         | bargain bin prices of Amazon shopping, we enjoy being nurtured
         | by marketing moguls who will tell us what will Solve All Our
         | Problems.
        
           | onion2k wrote:
           | _we enjoy being nurtured by marketing moguls who will tell us
           | what will Solve All Our Problems_
           | 
           | I don't think we do enjoy that, at least not once we're
           | experienced enough to understand that it's all lies designed
           | to sell us stuff rather than actually help at all.
        
           | throwawayboise wrote:
           | As someone who never sees ads on my phone or online, here is
           | how:
           | 
           | Ad blocker (uBlock Origin) in the browser.
           | 
           | No social media apps on the phone. No other "free" apps on
           | the phone. Location services always disabled unless I'm
           | actively using Maps navigation. Bluetooth always disabled.
           | 
           | I pay for YouTube Premium to not see ads. If there is another
           | app that I find useful, I pay for it to not see ads.
        
             | walrus01 wrote:
             | It's kind of cute you think youtube and other google
             | services aren't geolocating you (approximately) by the IP
             | of the ISP you're on at any given time, and your pattern of
             | life analysis using the internet at work vs home vs
             | friends' wifi. And when your traffic shows up as coming
             | from IP blocks belonging to your LTE mobile phone carrier
             | vs a terrestrial ISP.
             | 
             | If they have a data set from a hundred other people whose
             | behavior you can't control, using android phones in a
             | default configuration, in a residential /24 DHCP IP block
             | belonging to some last-mile ISP, where those people _do_
             | turn on location and GPS services, and you regularly show
             | up with traffic from the same block, you 're being
             | correlated with your neighbours.
             | 
             | Additionally lots of other people with fully-default
             | android or ios location/advertising permissions are using
             | other social media apps from the same netblocks that your
             | traffic regularly appears from in a predictable daily
             | wake/sleep pattern (facebook, instagram, twitter, reddit,
             | tiktok, etc).
        
               | est31 wrote:
               | These correlation methods exist, and indeed reveal a lot
               | about you, but they have precision limits. In rural
               | areas, the ip block might be as large as an entire
               | municipality, or even larger. If you turn on location
               | services, Google knows which _house_ you are in, and even
               | where you are inside that house from the wifi networks
               | you give them.
        
             | jimbob45 wrote:
             | _No_ free apps? What about if you need one for banking or
             | health insurance or something else essential?
        
               | Wingy wrote:
               | If I understand correctly, these are paid for by you or
               | by taxes, not through an app download fee.
        
               | acomjean wrote:
               | I think those apps are subsidized by your membership or
               | accounts. They aren't services paid for by ads.
               | 
               | But it might be better to use those in browsers with ad-
               | blocking, though honestly I'm not sure
        
               | cle wrote:
               | That doesn't mean the apps aren't using analytics
               | services that feed the data back to ad networks. Not only
               | are these data useful for targeting ads to you later,
               | they are useful for targeting to other people since they
               | can be used to infer characteristics and behavior of
               | similar people, which can then be used by advertisers for
               | more precise targeting.
        
             | erhk wrote:
             | Maybe you should pay for a navigation app too
        
               | rusk wrote:
               | They paid for their phone which comes with Navigation as
               | a feature. Debatable perhaps.
        
               | Guest42 wrote:
               | I'd opt for a clear contractual agreement that could be
               | entered and exited, or a paid alternative priced fairly.
               | 
               | Same with the phone, one shouldn't pay for a phone in
               | cash (or payment plan) and continue to pay indefinitely
               | with personal data. It could be worked out contractually
               | that way a person knows what they are buying at time of
               | purchase.
        
             | [deleted]
        
         | bradlys wrote:
         | You'd think that if they knew so much then they'd know to stop
         | serving me ads for services I'll literally never use. I am very
         | surprised at how bad the ads I get are and how much they miss
         | the mark and are a complete waste of money.
         | 
         | I get that for some people advertisers seem omniscient but man
         | do they miss the mark with me. Getting Trump ads (I may as well
         | carry a bash the fash bat) and advertisements for services that
         | I am completely against. It's like, "how fucking dumb is the
         | algorithm? Do they really think I want to work in an Amazon
         | warehouse when I make $400K/yr??"
        
           | jjoonathan wrote:
           | If an untargeted Trump ad impression costs $.02, targeting is
           | worth no more than $.01 to the ad buyer. Meanwhile, the
           | information might be worth $.10 to the local DNC or $5 to a
           | prospective employer. The information would need to be
           | laundered for the latter use case, but that's quite doable
           | and economically so.
           | 
           | One use and price point doesn't necessarily preclude the
           | other but discriminatory pricing is easy to arbitrage in the
           | information market, so in practice it makes sense to ditch
           | the low value applications in order to fully extract revenue
           | from the high value applications.
           | 
           | I wish bad ad targeting meant that this wasn't happening, but
           | wishful thinking doesn't make it so :/
        
           | nraynaud wrote:
           | They know everything but they are completely unable to use it
           | for advertisement.
           | 
           | The only time I had a relevant ad was retargetting (which is
           | also hit or miss since you might have made your purchase).
           | 
           | The only people who know how to use it efficiently are the
           | police when they want to arrest people who organize or
           | participate in demonstrations.
        
             | otabdeveloper4 wrote:
             | > They know everything but they are completely unable to
             | use it for advertisement.
             | 
             | You're almost right.
             | 
             | The data they collect wasn't ever intended to be used for
             | advertising purposes. They do it because they seek to pivot
             | from adtech to the much, much more lucrative and entrenched
             | govtech in the future.
        
           | cle wrote:
           | They don't serve the ad that is most relevant to you, or even
           | the ad that you are most likely to click on, they serve the
           | ad that advertisers are willing to spend the most on.
        
             | bradlys wrote:
             | > they serve the ad that advertisers are willing to spend
             | the most on.
             | 
             | I guess my point is - why spend any money on me with these
             | specific ads? They're not going to have any positive
             | outcome. How many leftists get shown a Trump ad and are
             | like, "Hell yeah I'm gonna donate/vote for Trump!" - it
             | can't be any amount that makes it worth it...
        
               | [deleted]
        
               | cle wrote:
               | I can imagine an endless number of scenarios where the
               | person setting up the targeting doesn't particularly care
               | about the efficiency. E.g. they were told to spend the
               | entire budget, and can only do that with blanket
               | targeting, and they'd rather just follow orders than push
               | back.
        
           | chihuahua wrote:
           | I have the same experience. The only thing Facebook has
           | figured out about me is that I like bicycling (because I post
           | about nothing but bicycling on Facebook.) Other than that,
           | their ads are complete nonsense.
        
         | nickysielicki wrote:
         | Surprised to see you mention fintech. I think you should leave
         | them out of it -- all this dystopian shit is made by the evil
         | "don't be evil" people.
         | 
         | It's ironic. When I was 18 and I heard about people doing HFT I
         | thought it was unethical, siphoning money from Joe Shmoe to
         | evil rich people. The older I get, the more I realize Facebook
         | and Google are the truly evil choice -- it's the people in HFT
         | that can have a clear conscience.
        
           | sfblah wrote:
           | Bingo, and very well put. I have several friends who work at
           | Facebook. I won't, and this is why. I honestly think part of
           | the reason Facebook pays such a premium for engineers is the
           | ick factor.
        
           | DeltaCoast wrote:
           | While I agree with you on FB and Google. Fintech isn't just
           | trading. Financial data is tracked and sold by these
           | financial tech / services companies just like browsing
           | activity. Even the "privacy first" companies like Plaid, who
           | doesn't sell the data, would have given up their data to Visa
           | had the acquisition gone through. All these companies are
           | incentivized to track everything they can.
        
           | px43 wrote:
           | IMO Google and Facebook have their hands remarkably clean
           | relative to the rest of the Adtech industry.
           | 
           | I've heard some crazy shit about how much money comes from
           | adtech to fund blackhat data brokers. Adtech buys hacked
           | databases on underground markets, but more than that they
           | fund supply chain attacks to get highly intrusive adware into
           | popular apps. They frequently buy up applications that have a
           | wide install base on phones and browser extensions, and then
           | on the next update, request maximum privileges and use it to
           | loot as much as they can from user systems.
           | 
           | It's a symbiotic relationship. Shady ad networks are often
           | used by criminals for narrowly targeted attacks (advertise
           | this crafted phishing site to women aged 25-35 in the greater
           | Dallas Fort Worth area who are recently married). Those
           | criminals use that access to obtain more private data which
           | they sell to adtech companies. It's a pretty gross business.
           | 
           | In other news, HFT isn't bad because it's HFT, it's bad
           | because order matching services have a bunch of shady,
           | undocumented order types that are designed to allow HFT firms
           | to specifically extract winnings from retail investors. They
           | are absolutely economic parasites, and no one has any
           | incentive to stop them.
           | 
           | https://www.amazon.com/Flash-Boys-Wall-Street-
           | Revolt/dp/0393...
           | 
           | https://www.amazon.com/Dark-Pools-Machine-Traders-
           | Rigging/dp...
        
         | intricatedetail wrote:
         | This is something a modern Hitler would love to have access to.
         | You never know who will be in charge tomorrow and whether
         | you'll make the list of people to go to camp or get a special
         | "vaccine"
        
           | throwawayboise wrote:
           | I mean not even the next despot; the people in charge today
           | love to have access to this (and they do).
        
             | jka wrote:
             | That sounds optimistic, to be honest. I find it difficult
             | to trust that strictly only "people in charge" have access
             | to the datastores and profiles these various adtech
             | companies manage.
             | 
             | Is there already an underground market for person-to-person
             | sale of information about individuals for relationship-
             | tailoring purposes, or could there be soon? And would those
             | become commonplace or even socially accepted if so?
             | 
             | Those are the kinds of question I have about the territory
             | we're getting into, and I wonder what the implications
             | would be for society.
        
         | CyberRabbi wrote:
         | > And we just let them do this.
         | 
         | And by "we" I hope you mean consumers as much as the people who
         | built this. Some may say this is a systemic problem and I don't
         | necessarily disagree with that but I think that narrative
         | obscures the fact that the average person literally does not
         | care. Maybe privacy-conscious tech nerds on the internet care
         | but normal people really do not care at all because if they did
         | they would not consent to it when purchasing an iPhone or
         | Android. The public is well-aware of the lack of privacy of
         | these devices yet their behavior does not change.
         | 
         | If you are a tech person who cares about your privacy then buy
         | a Linux phone. Apple and google and government are not going to
         | change this when there is no significant public will to change
         | this.
        
           | titzer wrote:
           | > but normal people really do not care at all because if they
           | did they would not consent to it when purchasing an iPhone or
           | Android.
           | 
           | These platforms literally do everything possible to obscure
           | what you are actually agreeing to. Google, for instance, has
           | lawyers sign off on privacy design docs that set the verbiage
           | on dialogs that users agree to. The lawyers are there to make
           | sure it is as vague and as broad possible while being up to a
           | hair's breadth of what is legally defensible.
           | 
           | Consumers are deliberately kept in the dark. One might say
           | they are naive and trusting. But most would absolutely
           | disapprove if they sat at the "God console" and saw other
           | people's lives the way the vast towers of computing power and
           | machine learning can. It's like a wireframe view of an ant
           | farm, but with people.
        
             | CyberRabbi wrote:
             | > But most would absolutely disapprove if they sat at the
             | "God console" and saw other people's lives the way the vast
             | towers of computing power and machine learning can.
             | 
             | Sure maybe they would disapprove but they would probably
             | still use their phones even after being horrified by the
             | god console. The fact is that the average person is already
             | aware their phone is spying on them without being told by
             | the manufacturer yet they still use their phones. On a
             | visceral level, the benefit of their phone far outweighs
             | abstract privacy concerns.
             | 
             | For example, a troubling amount of people were seriously
             | paranoid about 5G somehow causing them harm. What
             | percentage of that group do you think will continue to use
             | their 5G phone? I would guess upward of 80%
        
               | squarefoot wrote:
               | > On a visceral level, the benefit of their phone far
               | outweighs abstract privacy concerns.
               | 
               | True. Most have been fed the "if you have nothing to
               | hide..." bullshit for too long, so they now think only
               | criminals must have something to hide, which is nonsense,
               | and paves the way to potentially horrific development if
               | taken to the letter.
        
               | titzer wrote:
               | > What percentage of that group do you think will
               | continue to use their 5G phone? I would guess upward of
               | 80%
               | 
               | I know. But people still smoke even after seeing pictures
               | of cancer-ridden lungs. We're all little crack addicts.
        
               | CyberRabbi wrote:
               | > But people still smoke even after seeing pictures of
               | cancer-ridden lungs.
               | 
               | Great point all around. Similar to the smoking problem, I
               | think if we want behavior around privacy to change it
               | will require large amounts of funding and public
               | campaigns. I think it's unlikely there will be a
               | grassroots effort.
        
       | bemmu wrote:
       | I'm sure there's a lot of actual data sharing going on, but I
       | also wonder how often these are just the Baader-Meinhof effect
       | (noticing recently mentioned things everywhere).
       | 
       | Today I made an insta post about sand that resembled dunes at the
       | beach, mentioning a camel in the description. Less than 5 minutes
       | later I saw the camel logo at the beach bathroom, on someone's
       | discarded cigarettes.
       | 
       | Here it's obvious that there is no connection. But if I had
       | instead randomly seen a camel cigarette ad online at that point
       | in time, I might have seriously wondered if it's because I
       | mentioned it in the post.
        
         | sp332 wrote:
         | A friend visited me from Ohio (I live in New Hampshire). After
         | hanging out for a few days, I was getting twitter ads for local
         | Ohio stuff.
        
         | shawnz wrote:
         | A simple experiment is to try thinking of some consumer product
         | which you don't normally use and wait until you see an ad for
         | that product. Make sure not to pick something you talked about
         | recently or something you were reminded of by the media. In my
         | experience you will be surprised how quickly you start seeing
         | ads for that thing all of a sudden.
        
           | beardedetim wrote:
           | I've been waiting for an ad for turtle necks for over a year
           | doing this experiment. Maybe that's too specific?
        
             | cvwright wrote:
             | Start having conversations about turtlenecks and see how
             | long it takes for the ads to show up.
        
               | dorkwood wrote:
               | Now that he's written the phrase "turtle neck" online,
               | the whole experiment is compromised. Best to start
               | thinking of another item altogether.
        
         | dalbasal wrote:
         | >> I wonder how often these are just the Baader-Meinhof effect.
         | 
         | No. That is, there's Baader-Meinhof effects, misattribution and
         | other things going on at the surface level... but the actual
         | reality is much worse.
         | 
         | Ad tech is the entirety of FB & Alphabet. Ad tech _is_ their
         | business and as an industry it rivals energy, shipping...
         | everything but defense. It is the tech industries ' biggest
         | achievement, and the most economically significant "big data"
         | and machine learning sector. Don't underestimate it.
         | 
         | Tracking and snooping are the single most important element in
         | ad tech. Views & user volume is secondary.
        
         | fian wrote:
         | There are definitely IP address based tracking going on.
         | 
         | My partners birthday was coming up and I thought she might like
         | a weighted blanket as a gift.
         | 
         | Within 10 mins of doing some light searching for prices and
         | local outlets on my office computer, she came into my office
         | smiling asking if I was planning on buying her one for her
         | birthday.
         | 
         | She had suddenly seen multiple ads for weighted blankets appear
         | on Facebook.
         | 
         | This was the most obvious example, but there have been many
         | others were one of us researching something through our home
         | internet connection will affect the advertising the other
         | person sees.
         | 
         | I now have to be more careful in how I do my gift searching.
         | Personally, I'm not really seeing this type of targeted
         | advertising as a net positive.
        
       | strangattractor wrote:
       | I constantly get ads for things I just purchased. Note to Self:
       | Need to figure out how I can get paid to sell useless advertising
       | to marketing chumps:)
        
       | spinach wrote:
       | Companies make billions off _free_ products. It shouldn 't be
       | surprising to anyone there are extremely shady things going on.
       | 
       | Don't use a phone and pay in cash.
        
       | melomal wrote:
       | I have an amazing story.
       | 
       | Moved into a new place, in Poland. Bought a new smart TV, it was
       | a Samsung (kaput after 2 years). Me and my wife decided to have
       | an impromptu singing session just bellowing out 'Hotel, Hotel,
       | Hotel, Hotel, Hotel, Hotel' in a Pitbull (Cuban rapper) style
       | whilst looking for holidays to book.
       | 
       | Within the next 5 minutes, Trivago was on the TV. Now bear in
       | mind I have literally never seen Trivago being advertising on the
       | TV and all of a sudden their catchphrase at the end of the ad got
       | me 'Hotel, Trivago'.
       | 
       | Safe to say me and wife had a few minutes of WTF just staring at
       | the screen then each other. That's when I truly became convinced
       | that everything is listening. Could have been a coincidence
       | though but it was an almighty coincidence to say the least.
        
         | afterburner wrote:
         | > whilst looking for holidays to book
         | 
         | Cookies, IP addresses
         | 
         | Also, maybe not in this case but more generally, GPS
        
         | bby wrote:
         | Subtle flex. He has a wife.
        
         | jonny_eh wrote:
         | Sounds like coincidence mixed with confirmation bias. The
         | likelier explanation for stories like this.
        
           | melomal wrote:
           | I do lean more towards coincidence but since then there's
           | been no Trivago ads.
           | 
           | To be honest, the ads on TV are basically on repeat so this
           | is why it stood out so much, the fact that I can practically
           | give you the schedule of ads that I am about to be shown
           | during a break which does not include Trivago is what gets
           | me.
        
         | muststopmyths wrote:
         | >looking for holidays to book
         | 
         | Well, I assume you weren't looking through an offline printed
         | holiday guide of some sort :-)
        
           | jacob019 wrote:
           | This. We always get targeted youtube ads after googling
           | things. Creepy AF.
        
             | gruez wrote:
             | Google and youtube are the same company, so it's not
             | exactly surprising that they'd share data. As for whether
             | it's creepy, I'd say it isn't because you explicitly gave
             | up that data. This is slightly different than something
             | like google/facebook tracking you via third party cookies,
             | because that involves no consent at all.
        
       | Ccecil wrote:
       | Are they listening to mics? That is constantly debated/debunked.
       | 
       | But yes...geolocation, networks you log to, phones you are near,
       | what you search. That all seems to play a part.
       | 
       | Linkedin has in the past for me suggested connections based on
       | the wifi I was using. Someone who I don't have common friends or
       | career as and I was getting their contacts as suggestions just
       | after using the same wifi. I have no facebook account...but it
       | seems every phone I buy has it preinstalled.
       | 
       | To me I have long assumed this was going on. With the number of
       | sensors and the capability to have a near constant data
       | connection it boils down to "if they can...they will". But as a
       | good friend of mine says "I thought this was what we wanted".
       | People seem to enjoy that the first button they see when they log
       | in is the button they were actually looking for. (not saying
       | everyone...some take security/privacy very serious...but the
       | flame is bright for the masses).
       | 
       | I constantly have ads served to me for something that has been
       | discussed in the room near me...or topics I would never have an
       | interest in but the conversation was happening near me. My
       | assumption is someone I was near enough for my phone to "see"
       | their MAC address (if via common wifi or if it is adhoc...doesn't
       | matter) and they searched the terms later.
       | 
       | I have become so used to this it has stopped bothering me. The
       | real concerns I have are when I start getting served ads for
       | things like Cancer or other medical treatments. It makes me say
       | in my head "Does the bot know something I don't? Is there some
       | sort of symptom I am having and the AI has picked up on it before
       | me?"
       | 
       | At any rate...welcome to the future. Accept that tracking is a
       | thing. I don't personally see a way to force the companies who
       | have already become some of the biggest in the world by
       | storing/selling data that they need to stop. Even through
       | regulation. My personal opinion is we have passed the point of no
       | return...it is the new normal until "the great reset" which will
       | take a near extinction level event to force us back.
        
         | beermonster wrote:
         | > Are they listening to mics? That is constantly
         | debated/debunked.
         | 
         | No. They don't need to. Also, in iOS at least, they'd get
         | caught as there are visual indicators now for when mic/camera
         | are activated.
        
       | intricatedetail wrote:
       | This should be illegal. Why politicians don't stop this?
        
       | jimmaswell wrote:
       | Haven't studies found this kind of thing to be mostly the
       | frequency illusion?
        
       | [deleted]
        
       | decafninja wrote:
       | Weirdest anecdote for me: My wife and I were peeling shrimp for
       | dinner and we were chatting how great it would be if there was
       | some kind of tool that would make the task easier.
       | 
       | A while later after we ate, I was browsing Facebook and I was
       | being shown ads for shrimp peeling tools. We had not done any
       | kind of online search, etc. for it. We don't even have any "voice
       | assistants" like Alexa, Google Voice, etc. (Though we both have
       | iPhones so we have Siri).
       | 
       | So how did FB know we had been talking about shrimp peelers?
        
         | cmg wrote:
         | Had you or your wife looked up "shrimp recipes" or "how to make
         | shrimp" or anything like that in preparation for the meal? Or
         | did you use a loyalty/discount card at the supermarket that's
         | tied to your identity?
        
       | rsync wrote:
       | "When I use my discount card at the grocery store? Every
       | purchase? That's a dataset for sale."
       | 
       | He's just using that as a general example, right ? He does not,
       | himself, as a data privacy expert and knowledgeable user of
       | networks _actually use a grocery discount card_ , right ?
       | 
       | Further, the more general set of examples that make up his
       | narrative rely, to some degree, on using a mobile device that is
       | connected to, or even registered in, his actual, real name.
       | 
       | He doesn't do that, right ? Is anyone here doing that ?
        
         | katmannthree wrote:
         | Yes? I don't particularly care whether or not the grocery store
         | knows exactly which products I buy, especially since it's moot
         | with 1) the introduction of eye-level facial recognition
         | cameras at every checkout lane and 2) paying with a card
         | because I don't want to carry cash.
        
         | [deleted]
        
         | [deleted]
        
         | the_biot wrote:
         | Considering he doesn't use ad blockers, i.e. he sees ads at
         | all, he may not be a data privacy expert. /s
        
         | erhk wrote:
         | Government bodies have forms that require you submit a phone
         | number. You cannot go to a restaurant without using a QR code
         | reader to see the menu. I'm not sure what reality you live in
         | but having no phone is akin to living off grid now
        
           | rsync wrote:
           | I have a phone just like you do.
           | 
           | It's just not attached to any human identity.
        
       | gnicholas wrote:
       | A couple weeks ago there was an HN post about some lockpicking
       | tool. I watched a video about it in Firefox Focus on my iPhone.
       | Later that day, I was on YouTube on Safari, logged into my gmail
       | account. It recommended videos on lockpicking.
       | 
       | I assume this is based on IP address? What can be done about
       | this? If Firefox Focus/incognito isn't enough, what should I be
       | doing? I already use NextDNS and mostly use Brave incognito on my
       | laptop.
        
       | jesseryoung wrote:
       | I've got a question for anybody who works in ad/marketing tech -
       | is what Robert is describing something that you've worked on/with
       | and seen successful results? If so did you build it that way
       | intentionally? Like, I totally understand that it's possible, but
       | has anybody intentionally built something that tracks or
       | correlates peoples location so they can group them with similar
       | interests and sell them similar products?
       | 
       | To me, the stupidest simplest solution is probably the most
       | likely - some naive marketing analyst probably just grouped all
       | traffic coming from the same IP address into the same bucket and
       | blasted ads to them based on recent Amazon purchases at the same
       | IP address.
        
         | dalbasal wrote:
         | Yes. Many times, and at scale.
         | 
         | While not strictly accurate, it's easiest to think about it as
         | a simple machine learning system. The system can't be
         | interrogated, so you don't really know what correlations are
         | being made.
         | 
         | The actual way it works is in layers. There's a human layer,
         | using logic to create segments or other targeting methods.
         | There's the ad network's automated optimisation options. FB
         | really took this to the next level. There's retargeting.
         | Bidding, and the economics of advertising plays a big role in
         | giving the system intelligence. 3rd party ad management
         | software.
         | 
         | Each piece/layer typically ads additional data to the set. The
         | human/advertiser generally does this this by uploading or
         | tagging their own customers. FB, for example, will allow you to
         | create a "similar" list, where it finds user similar to those
         | you designate. Similarity is somewhat ambiguous. FB/Adwords is
         | where the heavy lifting happens, most commonly via bid
         | optimisation.
         | 
         | The only intention is "goals per $." Price, and volume. As I
         | said, the sausage factor is complex and no one sees the whole
         | thing. In practical terms, a massive NN optimizing for
         | sales/signups/etc itself is a decent analogy... and
         | increasingly not an analogy.
        
           | cordite wrote:
           | How is this going to work with carrier grade NAT?
           | 
           | Edit: commercial to carrier, thanks justusthane
        
             | kube-system wrote:
             | There are other identifiers that can work cross-device
             | other than IP. Basically anything tied to you (identifying
             | or not) that exists on both devices can be used.
             | 
             | Have you logged into a service or websites on multiple
             | devices before? Then you voluntarily gave them enough data
             | to link it.
        
             | justusthane wrote:
             | Just FYI, it's " _carrier_ -grade NAT". And there are a lot
             | of ways to associate people with each other other than
             | their public IP address. The linked twitter thread doesn't
             | even mention IP addresses, neither does the comment you
             | responded to. I suspect IP addresses are already a pretty
             | inaccurate way to link people with each other.
        
             | beagle3 wrote:
             | It likely doesn't for IPv4 now that everyone has switched
             | to HTTPS.
             | 
             | Many ISPs used to insert "client id" and other uniquely
             | identifying information while NATting/proxying. Luckily,
             | they can't do that for https - but I wouldn't put it beyond
             | them to sell a back channel "connection xyz is unique user
             | abc" service.
             | 
             | However, with the move to IPv6 , at least in my area, NAT
             | is gone and static assignment is in. You just need to know
             | the isp's prefix length, and you get a unique identifier.
        
             | mrb wrote:
             | Heuristics. Marketers do cross-device correlation only when
             | seeing a small number of devices (ie. look like they could
             | be part of the same household). If they see hundreds of
             | devices behind the same IP it's probably a larger entity
             | (ie. a company office).
        
             | [deleted]
        
             | tharkun__ wrote:
             | I think the question isn't so much how it works with that
             | (as in you are pointing towards it just not working) and
             | instead just how well it works with that.
             | 
             | Do you have numbers on how many consumers in say NA,
             | various European countries etc are behind CGNs? I would
             | guess most are used by mobile carriers (but I have no data)
             | and I would gather that this particular technology is not
             | going to be used to try and associate random mobile users
             | anyway. It's more about who likely lives in the same
             | household.
        
               | ipython wrote:
               | Google has that covered since many of those behind CGN
               | are also on networks with native ipv6. Many mobile
               | networks have already made the switch - dual stack to the
               | handset with native ipv6 and ipv4 handled via CGN.
               | 
               | Googles interest in ipv6 isn't entirely altruistic after
               | all...
        
           | jesseryoung wrote:
           | Fascinating. Any clue as to what the largest factor for
           | "similarity" is, and how much it contributes?
        
             | dalbasal wrote:
             | These tweets are a pretty decent sample, though I suspect
             | these factors (association with other phones/users and
             | such) are more active in bid optimisation than list
             | generation. Hands off stuff is gradually overtaking the
             | "hand coded" elements. These, I imagine, can take advantage
             | of wider set of heuristics.
             | 
             | List generation is dumber, and feels more hand coded. Basic
             | demographics, facebook/instagram interests.
        
         | Eridrus wrote:
         | > To me, the stupidest simplest solution is probably the most
         | likely - some naive marketing analyst probably just grouped all
         | traffic coming from the same IP address into the same bucket
         | and blasted ads to them based on recent Amazon purchases at the
         | same IP address.
         | 
         | Yes, the dirty secret of basically all discussions about
         | tracking on the internet is that IP+User-Agent is a pretty good
         | baseline that is commonly used.
        
         | hagy wrote:
         | Yep, this is called cross-device matching. Generally consists
         | of some modeling for devices seen together on the same IP
         | address. One of the notable AdTech companies in cross-device
         | modeling is Drawbridge (purchased by LinkedIn).
         | 
         | Here's a 2015 Kaggle competition that they hosted, which
         | provides sample data that they use in modeling,
         | https://www.kaggle.com/c/icdm-2015-drawbridge-cross-device-c...
         | 
         | And here's a technical writeup of one of the well-performing
         | solutions from that competition,
         | https://arxiv.org/pdf/1510.01175.pdf
        
           | secondcoming wrote:
           | Tapad are probably bigger than Drawbridge
        
         | nonameiguess wrote:
         | Ultimately, all attempts at attribution are heuristic in
         | nature. Marketers know a single IP doesn't represent a single
         | person, but if it's the best they can do, it's the best they
         | can do. Even for services with accounts, tracking can't be
         | perfect. When my wife's phone or laptop is closer than mine and
         | she's logged into Amazon Prime or Uber Eats, I'm ordering
         | through her account. Now she's gonna see ads for gym equipment
         | she has no interest in. Oh well. It doesn't matter how good
         | your location, device, browser fingerprinting is when people
         | share locations, devices, and browsers. The only way to know
         | it's really me is to get my actual fingerprint or some other
         | _truly_ unique biometric identifier.
        
         | Ozzie_osman wrote:
         | It's a little different. Targeting these days is more and more
         | machine learning driven. So it's not really someone sitting
         | down and saying "show an ad to anyone who stayed at a house
         | with someone who bought this toothpaste". Rather, a bunch of
         | data flows into Facebook and it uses those signals to decide
         | who should see what. It's not a naive analyst. It's a
         | statistical engine (and yes, that engine can sometimes be
         | naive, and it's working off of really noisy data).
         | 
         | For example, any good Facebook marketer probably uses
         | "lookalike audiences". You upload some existing customers and
         | then tell Facebook to show ads to people who are "like" your
         | customers. Facebook then used whatever data it has to find
         | similar users (demographic, interest, geographic, behavior
         | etc).
         | 
         | In fact, lookalikes can be so good that any good marketer also
         | knows to _exclude_ existing customers from the lookalike
         | audience (unless you're actually retargeting your existing
         | customers).
        
         | klyrs wrote:
         | It works, and it's awful. I was looking for a present for my
         | girlfriend, and she started seeing ads for the things I was
         | looking at. About a week later, she was excited to show me her
         | new purchase... and I'm scrambling to find a new gift idea. And
         | now I'm paranoid -- it seems that the only way to stop this is
         | to make a cash purchase in meatspace.
        
           | benhurmarcel wrote:
           | You should suggest her to install uBlock Origin. Not just for
           | that problem, in general it's good practice.
        
             | klyrs wrote:
             | She's the IT expert of the house. I don't tell her what to
             | install, or how to manage our network. If anything, I
             | should put a pihole on my wishlist -- but even that
             | wouldn't solve the problem that all of our metadata is
             | correlated, and nothing blocks first-party tracking
        
               | krn wrote:
               | > but even that wouldn't solve the problem that all of
               | our metadata is correlated, and nothing blocks first-
               | party tracking
               | 
               | That's true - nothing stops Google from knowing what you
               | were looking for - but if your girlfriend was seeing ads,
               | she wasn't using uBlock: because it blocks all first-
               | party ads, too.
               | 
               | I think a much bigger problem here is that almost nobody
               | uses Firefox for Mobile. Also, uBlock doesn't block ads
               | across native apps (for instance, YouTube).
               | 
               | The solution is to use something like NextDNS as your DNS
               | provider at OS or router level. At least on Android 9+
               | and most latest Linux distributions (via systemd-
               | resolved) no additional software is required for it to
               | work.
        
           | johnchristopher wrote:
           | How does purchasing in a physical store prevents them from
           | using your tracked online activities to target you and others
           | ?
        
             | klyrs wrote:
             | It doesn't, as you ask, prevent tracking of my online
             | behavior. That's a lost cause. Cash allows me to hide
             | select purchases, as long as I don't do any comparison
             | shopping online. And that prevents disclosure of gift
             | purchases to my housemates.
        
           | bashinator wrote:
           | Yet another reason why ad blocking is ethical.
        
           | Scoundreller wrote:
           | Reminds me when I was getting relentlessly retargeted ads to
           | purchase something. So when I did, I paid cash to keep the
           | ads coming and mitigate any attempts at offline attribution.
           | 
           | I'm guessing the present wasn't a PiHole or VPN?
        
           | beagle3 wrote:
           | Use Firefox and install uBlock Origin.
           | 
           | Your credit card company will still sell you out - but that
           | does take a little more time, and will only include one item
           | (rather than your entire browsing history) - meatspace cash
           | is likely to help with that, but that's much less of a
           | problem in your context, I think.
        
             | hinkley wrote:
             | That won't help with IP tracking. Buying presents from work
             | sounds like a better option. Assuming we ever go back to
             | work.
        
               | cozzyd wrote:
               | Ublock presumably will block the tracking code, if it's a
               | third-party tracker.
        
             | klyrs wrote:
             | Don't forget, a VPN, a new email account and a new phone
             | number for "2fa". Also, where is it getting shipped? I
             | can't receive packages at work. The "convenience" of
             | shopping online is a legend from my youth
        
             | pen2l wrote:
             | I use uBlock Origin and have an iphone. Unfortunately
             | getting an adblocker is not as trivial, so inertia took
             | over and I see ads on youtube app and I see ads when
             | generally browsing the web on the iphone.
             | 
             | I notice that over the course of the last year either some
             | really sophisticated newer algos are being put to use, or
             | the collaboration and sharing of information between ad
             | networks has been streamlined or increased in some manner
             | because I'm being served ads that are creepily relevant.
             | But in any case, the clues and data you leave behind,
             | they're aplenty and quite suspect to being compromised and
             | pounced on by ad networks. I think at this point if you
             | wanna play tango, don't only just play defense (ad block),
             | go on the offense as well and use adnauseam to pollute the
             | profiles they've built of you.
             | 
             | I want to articulate as well the annoyance I feel when
             | being served targeted ads: an ad, if it's related to my
             | interests, even tangentially, it does grab me, and no doubt
             | it probably compels me to make some decision one way or the
             | other. Particularly, what gets me, I believe, is both the
             | mental overload of being served ads of "relevant" things
             | which will attract my attention too much and clutter my
             | mind and distract me, and the sheer arrogance of pushing
             | things it believes are relevant to my interests.
        
               | beagle3 wrote:
               | Magic Lasso works well on iPhone/iPad, and so does
               | Firefox Focus ; I have both installed, not sure how they
               | divide the work, but I hardly ever see an ad in Safari or
               | Firefox on iOS.
               | 
               | (They don't stop YouTube from showing ads)
        
               | robotmay wrote:
               | Adguard on iPhone works alright, hooks into the Safari
               | blocker API. It's not as effective as a proper blocker on
               | Android but it does improve the experience.
               | 
               | I also run my iOS devices over Wireguard when out and
               | about to my home network which runs a pihole DNS server.
               | Works surprisingly well and also catches ads in apps that
               | way.
        
               | erhk wrote:
               | I took a picture of a friend's headphones on Snapchat
               | that they had left in my car. In the next week I started
               | seeing ads for that exact model, and they were distinctly
               | identical. Not a fun user experience.
        
               | vagrantJin wrote:
               | > have an iphone.
               | 
               | Well. I would postulate, that targeting iphone users
               | would be numero uno priority at any self-respecting
               | adtech company, since its a strong signal that marketing
               | does in fact appeal to you more strongly and you likely
               | have a lot of "spare change"...
        
               | shinycode wrote:
               | I have an iPhone with AdBlock Pro and I use NextDNS on
               | all my devices. I almost never have any ad with NextDNS
               | (paid version) so for me it works really well.
               | 
               | Sometimes it's << annoying >> because I click on links
               | from articles and emails and they are blocked so I can
               | choose to give up or disable NextDNS for this time but
               | it's my choice to be tracked
        
             | martinmunk wrote:
             | I guess what really baffles me here is that a CC issuer is
             | allowed to sell that data at all. Just. Wow.
             | 
             | I'm not trying to show off my European high horse, it's not
             | like we don't have our own problems.
        
             | refulgentis wrote:
             | Will Firefox and uBlock Origin prevent my IP address from
             | being discovered? Sibling posts indicate this was probably
             | accomplished via IP address targeting.
        
               | beagle3 wrote:
               | It will block all the 3rd parties that have to do
               | anything with retargeting like Facebook, google, Adnexus,
               | etc.
               | 
               | It's unusual for sites to conspire directly and share
               | data about IP (but that may change)
        
             | yborg wrote:
             | And by meatspace cash, it has to be pieces of paper and
             | metal. If you use a debit card, the payment network knows
             | anyway. And that might not even be good enough, if you
             | carry your phone, they have your location at that time, so
             | if someone really wanted to, it's probably not even hard to
             | correlate the relatively rare cash purchase at that exact
             | time and place and know it was you anyway.
        
             | smsm42 wrote:
             | You could just buy a generic giftcard (like Amex one) and
             | use it to make the actual purchase.
        
         | koonsolo wrote:
         | Let me tell you this: I'm from the Flemish part of Belgium.
         | YouTube and other sites with ads can't figure out that I don't
         | speak French.
         | 
         | So even with this simplest of use-cases: GPS says I live in
         | Flemish part, never search in French, etc. Still they sometimes
         | show me French ads, which is a total waste of course.
         | 
         | So I don't believe the tech is so crazy advanced already.
        
           | brnt wrote:
           | There are a surprising amount of people that think Belgium is
           | majority French speaking. While I understand Belgium is
           | tipping few foreign curricula with such trivia, I blame it
           | for this default across the many services that do it wrong.
           | Also, non-Belgians I meet rarely know two-thirds speak Dutch
           | rather than French.
        
         | beermonster wrote:
         | A lot of this is described in the book 'The Age of Surveillance
         | Capitalism' by author Professor Shoshana Zuboff[1]. There's
         | also a good documentary on Netflix (I forget which, I think
         | it's 'The Great Hack'[2]), explaining how the 'Cambridge
         | Analytica' scandal utilised personal data and more importantly
         | behaviour.
         | 
         | They're just scarily good at predicting what you are going to
         | do. They're not listening in. It's far scarier/more insidious
         | than that.
         | 
         | [1]
         | https://en.wikipedia.org/wiki/The_Age_of_Surveillance_Capita...
         | 
         | [2] https://www.netflix.com/gb/title/80117542
        
           | samanator wrote:
           | Why is this downvoted? It provides useful information with
           | sources.
        
         | ir77 wrote:
         | My wife works with digital ads - on sale side, not tech - and
         | the products that they offer in terms of geofencing goes
         | something like this: they have a bucket of tracked people that
         | went to a car show or a dodge dealer that they can then push
         | ads from a local Toyota, or whomever her customer is. They
         | further can track and determine how many of those people
         | actually went to the said advertised dealer.
         | 
         | They did a compare for one dealer: out of 150 people that got
         | pushed ads for the dealership 12 ended up buying cars there
         | afterwards - on a higher $ purchase that's pretty significant
         | conversion.
        
           | Scoundreller wrote:
           | Ads are a pretty good proxy for how much profit a sale is.
           | While a car is a high $ purchase, moving your $40/month
           | cellular plan from one provider to another is $thousands of
           | profit loss for one provider and $thousands profit for
           | another.
        
           | juskrey wrote:
           | Did they compare to the similar group of people who did not
           | get ads?
        
             | [deleted]
        
           | secondcoming wrote:
           | These days this is a basic offering of any adtech company and
           | is full of quite a lot of BS.
        
         | slothtrop wrote:
         | When I was shopping for wedding rings, I started seeing ads for
         | Peoples when streaming on tv and on the SO's own phone. This
         | despite the fact I usually browse with an ad-blocker, no-
         | script, and delete cookies. The tracking is remarkably
         | invasive.
        
           | akersten wrote:
           | How do you know your SO wasn't getting ads for wedding rings
           | simply because she was thinking about getting married too?
        
             | slothtrop wrote:
             | First the timeline, second that she confirmed she wasn't
             | shopping around or investigating wedding-related items.
        
         | djhworld wrote:
         | > To me, the stupidest simplest solution is probably the most
         | likely - some naive marketing analyst probably just grouped all
         | traffic coming from the same IP address into the same bucket
         | and blasted ads to them based on recent Amazon purchases at the
         | same IP address.
         | 
         | I agree with this as well. I've been living back at my parents
         | house for a bit while I'm between properties, and I definitely
         | see ads for stuff targeted at my parents. Sometimes I worry
         | there might be a privacy breach there, e.g. my Dad has been
         | suffering from a condition recently and I've seen ads for
         | coping with it come up on my computer, most likely based on his
         | google searches or whatever.
        
       | jahewson wrote:
       | Because you're on the same wifi network behind a NAT and have the
       | same public IP?
        
       | cupofcoffee wrote:
       | Trivial solution: make a tool that pumps tons of fake data to the
       | point where no algorithm can separate the signal from the noise.
        
       | shoto_io wrote:
       | Here is the interesting part:
       | 
       |  _> If my phone is regularly in the same GPS location as another
       | phone, they take note of that. They start reconstructing the web
       | of people I 'm in regular contact with._
       | 
       |  _> So. They know my mom 's toothpaste. They know I was at my
       | mom's. They know my Twitter. Now I get Twitter ads for mom's
       | toothpaste._
        
         | politelemon wrote:
         | I think he's arrived at the wrong conclusion. It's more likely
         | because he shared an IP address with the original targeted user
         | (mother). Occam's IP.
         | 
         | That said, I'd expect a privacy tech worker to have adblocking
         | on their devices and such a thing to not happen in the first
         | place.
        
           | modeless wrote:
           | Yes, whenever these stories come around, 90% of the time it
           | can be explained by shared IP. It's not GPS. It's not
           | microphones. It's not cameras. It's actually simple. You
           | connected to someone's WiFi. You got their public IP. It's a
           | unique 32-bit number, easiest thing in the world to store and
           | associate. Now you are associated for a while and get some of
           | the same ads.
        
             | shoto_io wrote:
             | Which in turn is a good thing, right? Because people seem
             | to get pooled together and the ads aren't clever enough to
             | distinguish.
        
               | afterburner wrote:
               | It's bad that they're trying to track you in any way.
        
               | politelemon wrote:
               | Quite interesting, I hadn't even thought of it this way.
               | In a way, VPNs could be pretty useful in this regard, as
               | you share the same IP as several other people. So you'd
               | be subject to irrelevant ads about the same topic that
               | most of them are searching for.
        
               | SyzygistSix wrote:
               | I assume that even though I use a vpn and have ads
               | blocked almost completely, my browser is fingerprinted
               | and my phone tracked so that I'm giving valuable data
               | almost all the time anyway.
        
               | bpodgursky wrote:
               | Lot of advertising targeting doesn't bother going below
               | the household level anyway, which IP sorta-kinda
               | corresponds to.
        
               | amelius wrote:
               | Why is this a good thing?
               | 
               | If I follow someone to a number of different locations
               | with Wifi, then I can learn a lot about them by using a
               | simple intersection of the ads I'm now getting.
               | 
               | For instance, if I get ads about diapers in all
               | locations, then I have a strong reason to conclude that
               | the person I'm following is pregnant or has a baby.
        
               | shoto_io wrote:
               | If you follow someone that closely from location to
               | location you won't need to cross check your ads to learn
               | stuff about them, I guess.
        
               | erhk wrote:
               | Well it sounds like one router will tell me about
               | toothpaste so why not diapers
        
               | modeless wrote:
               | I don't really consider it a good thing. I think VPNs
               | should be the default for everyone. But yes, it means
               | that ad networks aren't surreptitiously listening to your
               | spoken conversations. They are just doing the most brain-
               | dead obvious correlations.
        
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