Facebook's Messenger app will soon be one of the most secure messaging apps available.

The Messenger app can already encrypt your messages so that no one can read them in transit, but Facebook will soon let you encrypt your saved message history to prevent anyone, including law enforcement, from snooping on your data through a backdoor. This could make Facebook Messenger one of the most secure messaging platforms around. The problem is, no one trusts Facebook.

"I don't think people have a problem with Facebook's security features themselves, but rather with what they do with our data," Andreas Grant, a network security engineer at Networks Hardware, told Lifewire via email. "Since the Facebook-Cambridge Analytica data scandal and how they handled election manipulation, it's been hard for people to see Facebook as a 'safe' platform. We can't blame people for not being completely transparent about their data practices."

There are several parts of a messaging conversation that can be encrypted. The first is the conversation itself, as you and your contacts send messages to each other. This is known as End-to-End Encryption, or E2EE, and it’s what prevents people from snooping on your chats. Your messages are locked before they’re sent and then unlocked by the recipient.