Facebook has started rolling out end-to-end encryption (E2EE) across Messenger, continuing its efforts to bring E2EE across its platforms.

E2EE is the gold standard in secure communications, encrypting data so that only the sender and recipient can read the messages. WhatsApp already included E2EE for messaging, and recently rolled it out for chat backups.

The company is now implementing E2EE across Messenger. CEO Mark Zuckerberg made the announcement in a Facebook post.

End-to-end encrypted voice and video calls are now rolling out on Messenger, and we’re introducing opt-in end-to-end encryption for group chats and group audio and video calls too. I’m proud that we continue to extend encryption across more services.