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But...all of your contacts stopped talking to one number, and started talking to the new burner number. They know it's you.
by acct776 6y ago
But...all of your contacts stopped talking to one number, and started talking to the new burner number.
They know it's you.
- niutech 6y agoFacebook 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 6y agoIt 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.)
- fsflover 6y ago> 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 6y agoWould they really do this? Lots of people have multiple phones anyways.
- nashashmi 6y agoYes. 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.
- yokaze 6y agoI 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.
- mike-cardwell 6y agoEvery 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.
- acct776 6y agoInformation asymmetry is a motherfucker - and they have it all.