Today Facebook announced new Face ID and Touch ID support for Messenger on iOS called “App Lock” feature. It’s very good idea to enable it due to better security and privacy. The Company hopes that it will help users to feel much comfortable when letting someone else to borrow their iPhone and prevent your Messenger app by viewing private conversation. How to enable Face ID or Touch ID, enter Messenger, go to “Privacy” section in setting and you will see App Lock right there.
