Yes Facebook is using your 2FA phone number to target you with ads – TechCrunch
Facebook has confirmed it does in fact use phone numbers that users provided it for security purposes to also target them with ads. Specifically a phone number handed over for two factor authentication (2FA) — a security technique that adds a second layer of authentication to help keep accoun…
27 Sep 2018 ... Facebook has confirmed it does in fact use phone numbers that users provided it for security purposes to also target them with ads. Specifically ...