How to encrypt and decrypt chats
To encrypt, you only have to press the lock that is in the top of chats or in the main menu of chats.
You can also encrypt by drawing a “C” in the center of the screen.
To decrypt it can be done in the same way with the lock or by drawing the “C“.
For authentication you will be asked for the PIN you have chosen, or you can use TouchID or FaceID if you have activated it.