Facebook is bringing new features to their messenger that will increase the security of their messages. When the feature is turned on, you have to enter Face ID, Touch ID, or Passcode to see the inbox. Even if the phone is unlocked, it has to be done. News Engadget.

The feature will depend on the security settings of the device. As a result, Messenger has to be unlocked in the same way as the user unlocks his phone. You can also determine exactly how long after the app stops using this feature.

The feature is currently being tested on Messenger users on a small number of iOS devices. It will be consistently open to all users. Facebook has said that the feature will also come on Android.

A spokesman for Facebook said the move was aimed at preventing unwanted people from reading other people's messages.