Facebook rolls out end-to-end encryption for Messenger read more at here www.spinonews.com/index.php/item/1146-facebook-rolls-out-end-to-end-encryption-for-messenger

Facebook has rolled out its end-to-end encryption for Messenger service. The end-to-end encryption allows users to protect their conversations from being monitored by hackers, government agencies, or Facebook itself. 

"Your messages and calls on Messenger already benefit from strong security systems — Messenger uses secure communications channels," wrote Facebook in a blog post announcing the update. 

Users can toggle the "Secret Conversations" feature on in settings to enable end-to-end encryption on Messenger, but this option is available on updated Messenger apps only.

Unlike WhatsApp, where all messages are automatically encrypted once you turn the feature on, nearly one billion monthly active Messenger users will have to activate end-to-end encryption for every new message. 

To send a secret conversation, you will need to compose a new message, and you’ll see a new “secret” option. Again, both sender and recipient must have the latest update in order for secret conversation to fully work. 

Secret conversations are available on a limited test basis right now, but we will be making the option more widely available this summer. During this test, we will gather feedback about the functionality, measure performance and introduce tools to enable you to report objectionable content to us. Know more about Messenger end-to-end encryption