According to Facebook, Messenger uses the same secure communications protocols as banking and shopping sites. The messages are end-to-end encrypted, which means not even Facebook can access them.
Who can see my messenger conversations?
The chat and messaging sessions you have on Facebook are kept private between you and the other recipients. It is not possible for anyone not included in the chat to see the exchanges.
Is messenger really private?
Are Messages On Messenger Private? NO. Unless you are using Secret Conversations (explained below), your messages on Facebook Messenger are not private. Messages that are sent through the Facebook Messenger app are NOT end-to-end encrypted.
How do I make my messages private on Facebook Messenger?
How do I start a Secret Conversation in Facebook Messenger?From the tab, tap.Tap Secret in the top right.Select who you want to message.If you want, tap in the text box and set a timer to make the messages disappear.
Is Facebook Messenger a private conversation?
All secret conversations in Messenger are encrypted. Your messages will be encrypted whether or not you compare device keys. Both you and the other person in the secret conversation have device keys that you can use to verify that the messages are end-to-end encrypted.