Cross-app messaging between Instagram and Messenger came with a ton of upgrades for Instagram DMs, but it also came with a responsibility to provide people control over who could send them messages and where those messages went.
Added privacy and security for Messenger users: the ability to use biometrics like FaceID and TouchID to unlock their messages.
Vanish mode lets Instagram and Messenger users send disappearing messages with privacy, spontaneity, and delight.