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A comment on Have I Been Facebooked?. Parent comment

Re:Have I Been Facebooked? by Mordisquitos on Tuesday April 06, 2021 @04:33AM (#26709490)
How did Facebook know that it was a valid phone number, how did they associate it with your identity, and how did they know that number was really yours?
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Re:Have I Been Facebooked? by wodenokoto on Tuesday April 06, 2021 @07:19AM (#26710509)
It’s probably been a decade since I gave them my phone number, so I don’t remember the details. I believe they required it for the messenger app and did a 1 time SMS code for first time log in to messenger.
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