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 ... Yes Facebook is using your 2FA phone number to target you with ads. Natasha Lomas@riptari / Invalid DateTime•.