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How do they connect phone numbers in Android users' phone book to their respective Gmail accounts?
by avocado4 7y ago
How do they connect phone numbers in Android users' phone book to their respective Gmail accounts?
- AndrewDucker 7y agoBecause my friend Bob is in my contacts as Bob@Gmail.com and also as 0123456789.
- EGreg 7y agoSo can’t I put Bill Gates in the same contact as my own phone number? I guess I would need enough people to do a sybil attack on Google. I bet this is how Places data and other stuff is hacked. How does one prevent a coordinated attack like this? Machine learning ensuring voting rings can only be used once or twice?
- petre 7y agoThey associate the phone number used for 2FA with the account or the contact details has an e-mail address entry and it's filled up with a gmail address.
- pgeorgi 7y agoUsing the phone number given for 2FA (and nowhere else) for any other purpose would be in disagreement with the purposes listed at https://support.google.com/accounts/answer/183723?hl=en https://support.google.com/accounts/answer/183723?hl=en