Facebook has finished rolling out a "Secret Conversations" feature in its Messenger app. The new mode ensures only the two people involved in a chat can see the text.

In fact, even the government or Facebook (FBTech30) itself won't have access to conversations in secret mode, according to the social network.
The social network's 1 billion Messenger users now have access to the feature, CNNMoney confirmed. It uses end-to-end encryption, similar to what's found in Facebook-owned WhatsApp, Viber, Line and Google(GOOGLTech30)'s new messaging app Allo.
Messages will only be sent to whatever device used to start or first respond to the conversation. This means if you're chatting in secret mode on a specific smartphone, you won't see previous messages on your desktop.
Facebook also gives people the option to let specific messages within Secret Conversations expire after five seconds or up to a day -- a feature not unlike what's offered on Snapchat.
Cued from cnn

facebook secret conversations