Enabling End-to-End Encryption
This guide will show you how to enable end-to-end encryption in your rooms on both the Android mobile client and the desktop web client.
You can verify your friends’ device at the bottom of your friends’ profiles. If you’re going to verify a friend, follow the directions exactly! It is better that you leave your friends unverified than you verify them without following the directions.
Mobile
Open the room menu. 
Choose “Room Details”. 
Switch to the “Settings” tab. 
Scroll down to the “Advanced” section. 
Turn on encryption.
Desktop
Open room settings. 
Enable encryption. 
Save room settings.