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This is a easy way to collect phone numbers of concerned Facebook users.

Facebook then allows the person collecting phone numbers to search for the name of the user associated with a phone number (or email address).

https://mbasic.facebook.com/login/identify/?ctx=recover



I believe this has been limited more recently. I just put my number in there and it just says that I can click OK to text myself a password reset, but didn't leak any details on screen.




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