[HN Gopher] Facebook tracking users with background sound (2012)
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       Facebook tracking users with background sound (2012)
        
       Author : ddtaylor
       Score  : 72 points
       Date   : 2021-03-08 18:47 UTC (4 hours ago)
        
 (HTM) web link (web.archive.org)
 (TXT) w3m dump (web.archive.org)
        
       | m1117 wrote:
       | Why wouldn't you want tracking your users as a tech company? Some
       | people love condemning it. But that brought so much progress to
       | humanity, if you want to build a good product, you want to know
       | how users use it. You want to know how many users actually read
       | your emails.
        
         | krtkush wrote:
         | How about taking explicit consent before tracking users and not
         | tracking them everywhere they go (both digitally and
         | physically)? Users should expect a right to privacy and control
         | over their own data.
        
         | mrtksn wrote:
         | Tracking for improvement of a product or service etc. is
         | different from tracking for exploitation.
         | 
         | Also the risks associated with are different since it would
         | require different length of data preservation and anonymity.
        
         | pavel_lishin wrote:
         | Yes, much progress has been brought to humanity by <squints>
         | making sure end users read marketing emails.
        
       | nielsbot wrote:
       | I think the title is misleading. This looks like a sneaky way to
       | "phone home" using a `bgsound` tag to fetch a resource from FB's
       | servers (instead of an `img` tag). No sound is actually played.
        
         | avalys wrote:
         | It's also from 9 years ago?
        
         | licebmi__at__ wrote:
         | I agree, when I saw the title I was thinking something like "la
         | liga" android app that did tracked users using audio to find
         | out pirate transmissions of the soccer games. This is nothing
         | like it.
        
           | secfirstmd wrote:
           | Whoa I hadn't heard his this. Interesting.
        
         | dheera wrote:
         | I actually understood the title as-is, but that may be
         | indicative of my age (mid-30s) and could see how someone in
         | their 20s would have no idea of the horrors inflicted by
         | <bgsound>
        
         | sneak wrote:
         | Doesn't Instagram and such _also_ track users using ultrasonic
         | tags in media?
        
           | jerry1979 wrote:
           | I believe Nielson also uses audio tags.
        
             | rodonn wrote:
             | Nielson does do this, but only for users who have
             | explicitly opted into one of the panels, which they pay
             | people to be part of.
        
               | nitrogen wrote:
               | Aren't the audio watermarks still present regardless?
        
               | Enginerrrd wrote:
               | Yes.
        
           | [deleted]
        
           | rodonn wrote:
           | They don't. It's frequently been alleged, but is not true.
           | https://www.vox.com/the-
           | goods/2018/12/28/18158968/facebook-m...
        
             | sneak wrote:
             | From that article, after a bunch of paragraphs about how
             | Facebook probably isn't listening to your speech (but also
             | isn't trustworthy):
             | 
             | > _Another report, published in Wired last year, explained
             | how hundreds of apps use "ultrasonic tones" to track where
             | you're going in physical space. These apps need access to
             | your microphone, but not to actually listen to you, just to
             | "beacon" noises emitted in stores and by advertisements. So
             | ... rest easy._
        
           | [deleted]
        
       | smt1 wrote:
       | I think you can assume all sorts of
       | analog/physical/digital/information theoretic fingerprinting
       | probably has been used to capture huge volumes of data and
       | microtarget people w/o them knowing (especially in any web
       | browsers or phones).
       | 
       | Though until the CCPA/GDPR, it was probably fairly legally
       | nebulus. Still waiting for a privacy act in the US. Since it was
       | a wide variety of actors, we may never know who captured what
       | how.
       | 
       | I think companies like Apple who tend to make margin on the
       | hardware and not the information probably are to be commended by
       | pushing a lot of privacy/extra scrutiny requirements through the
       | platforms they control (iOS, mac, webkit, etc).
        
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       (page generated 2021-03-08 23:02 UTC)