[HN Gopher] Bridge WhatsApp with Matrix (and Signal, Telegram, i...
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       Bridge WhatsApp with Matrix (and Signal, Telegram, iMessage,
       Mattermost, etc.)
        
       Author : niutech
       Score  : 41 points
       Date   : 2021-01-10 15:32 UTC (7 hours ago)
        
 (HTM) web link (matrix.org)
 (TXT) w3m dump (matrix.org)
        
       | 29083011397778 wrote:
       | A point to note for anyone intending on switching: the whatsapp
       | bridge does not (yet) support voice or video calls. It's
       | understandable, as it can't be done through the Whatsapp Web
       | interface, but it's still a deal-breaker for me.
        
       | Closi wrote:
       | Wow, what a nightmare.
       | 
       | Every time I hear people on HN talk about Matrix as a potential
       | alternative to WhatsApp I always think "I'll try that" then I
       | look at it for about 20 seconds before deciding it's just not
       | worth it.
        
         | niutech wrote:
         | Could you elaborate why? Have you tried Matterbridge
         | (https://github.com/42wim/matterbridge) instead?
        
           | Closi wrote:
           | Take that page for example - I've got no idea what on earth
           | it is after reading the first few pages (I mean I do, but
           | with a consumer hat on I don't).
           | 
           | I mean it says it's supposed to be simple, but then moves on
           | to a load of command line arguments and something about an
           | API and then suggests I build it from source.
           | 
           | I mean clearly they have a different idea on what simple
           | means! This isn't consumer level software yet.
        
       | niutech wrote:
       | You can get rid of Whatsapp by bridging it with other secure
       | messaging apps (like Signal, Telegram, iMessage, Mattermost)
       | using Android VM and Matrix bridges: https://matrix.org/bridges/
       | 
       | Alternatively, you can use Matterbridge:
       | https://ibcomputing.com/setting-up-whatsapp-telegram-bridge-...
        
         | spockz wrote:
         | Doesn't this still open you up for profiling by
         | WhatsApp/Facebook on the WhatsApp edges of your communication?
        
           | niutech wrote:
           | No, because you'll be using a disposable SIM card only for
           | WhatsApp installed in the Android Virtual Machine. Facebook
           | won't have access to your own smartphone and your activity.
        
             | [deleted]
        
             | acct776 wrote:
             | But...all of your contacts stopped talking to one number,
             | and started talking to the new burner number.
             | 
             | They know it's you.
        
               | mike-cardwell wrote:
               | Every single one of your friends will add a contact to
               | their phone, with 1: The new phone number, 2: Your real
               | life name. They'll then go and share that contact list
               | with a dozen different apps, including Facebook and
               | Whatsapp. Some of them will add your email address,
               | birthday, and home address to that contact as well.
        
               | niutech wrote:
               | Facebook cannot know it, since it is another phone no.
               | not used anywhere else. The point of using another SIM
               | card in Android VM is that Whatsapp doesn't have access
               | to your Facebook profile, your web activity, your real
               | phone no., real location, MAC address of your primary
               | smartphone etc. Meanwhile you can use
               | Signal/Telegram/iMessage to chat with your Whatsapp
               | contacts.
        
               | t-writescode wrote:
               | It takes something like calling 3 phone numbers to
               | uniquely identify the owner of a phone number.
               | 
               | Connecting to several of your old friends is more than
               | enough to identify someone with an incredibly high level
               | of confidence.
               | 
               | (Example list of people: someone at your job or a friend,
               | another friend, your mother.)
        
               | niutech wrote:
               | Possibly, but it's still better than using Whatsapp as
               | before.
        
               | acct776 wrote:
               | It's a half measure technical solution to a political
               | problem.
               | 
               | Obscure, please, in all seriousness - but fund the EFF,
               | and vote for people who support data privacy vocally.
        
               | yokaze wrote:
               | I think the point is that the burner number only gives
               | you a weak pseudonymity. Your contacts and your
               | communication profile (how often are you talking with
               | whom) is still visible and it seems not unlikely that it
               | can be matched to the one in Facebook purely by that.
        
               | fsflover wrote:
               | > Facebook cannot know it, since it is another phone no.
               | not used anywhere else.
               | 
               | They just compare the set of friends with whom you spoke
               | using your original number and with whom this new number
               | speaks now. Otherwise you are right.
        
               | mycall wrote:
               | Would they really do this? Lots of people have multiple
               | phones anyways.
        
               | nashashmi wrote:
               | Yes. They really would do this.
               | 
               | They use a probability factor to identify similarity with
               | other users. If the similarities match high, they
               | internally identify it as a probable identical profile.
               | 
               | But for this to happen successfully, they would have to
               | use the first profile that didn't agree to new terms and
               | compare it to new profile that did agree to new terms.
               | 
               | Btw, somewhere in Facebook land they are trying to
               | workaround this hack. Which means FTC should be all over
               | this.
        
       | abdullahkhalids wrote:
       | How long before Facebook/WhatsApp blocks your account because you
       | are using an unauthorized way to access chats?
        
         | niutech wrote:
         | As long as the underlying Go-Whatsapp
         | (https://github.com/Rhymen/go-whatsapp) protocol implementation
         | is byte-for-byte identical to the original Whatsapp Web client
         | protocol, it should be indistinguishable.
        
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       (page generated 2021-01-10 23:02 UTC)