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.

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.

Is messenger secure and private?

Most communications - email, Facebook Messenger, Twitter direct messages, private messages on forums etc - are not encrypted by default. That means the provider of the service (or someone breaking into your account) can read them and could if required hand them over to law enforcement.