What are the best practices for using these apps? Just because you’re using a messaging app that offers end-to-end encryption, it doesn’t mean that your conversation is totally secure.

A 'cyber espionage campaign' is ongoing and federal authorities are warning people to keep their data safe. One way to do that is encrypted messaging.

With end-to-end encryption, every user of an encrypted chat app holds the unique code to unscramble a message sent to that account.