Today, we’re announcing that we’ve begun to upgrade people’s personal conversations on Messenger to use E2EE by default. Our aim is to ensure that everyone’s personal messages on Messenger can only be accessed by the sender and the intended recipients, and that everyone can be sure the messages they receive are from an authentic sender.
Meta is publishing two technical white papers on end-to-end encryption
- Our Messenger end-to-end encryption whitepaper describes the core cryptographic protocol for transmitting messages between clients.
- The Labyrinth encrypted storage protocol whitepaper explains our protocol for end-to-end encrypting stored messaging history between devices on a user’s account.