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Facebook admits using your phone number to provide targeted ads

Updated : September 28, 2018 04:33 PM IST

The social network specifically uses a phone number that users provide for two factor authentication (2FA) -- a security technique that provide a second layer of authentication to help keep accounts secure.
The findings of the study suggest that Facebook uses "shadow contact information" to make money through advertising.
Facebook admits using your phone number to provide targeted ads
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