Meta launches end-to-end encryption on Messenger and Facebook

07/12/2023 | The Guardian

In a recent announcement, Meta has confirmed that it has begun rolling out end-to-end encryption (E2EE) by default across Messenger and Facebook. The new features took years to develop as engineers, designers, cryptographers, and others rebuilt the app from the ground up. The encryption is built on the Signal protocol and Meta's own Labyrinth protocol.

While the new features will be available immediately, it will take months for default end-to-end encryption to be rolled out to the more than 1 billion users on the platform. Meta confirmed that it will no longer have access to the contents of what users send or receive unless one user in a chat chooses to report a message to the company.

On Thursday, the UK government accused Meta of empowering child sexual abusers after the social media company began rolling out default  E2EE on its Messenger and Facebook platforms. Home Secretary James Cleverly called the move a "significant step back" for child safety and said that "Law enforcement, charities and our close international partners all agree: these plans to roll out end-to-end encryption without appropriate safety measures will empower child sex abusers and hamper the ability of the police and NCA [National Crime Agency] to bring offenders to justice."

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