Lock the whole app

App lock puts a password in front of KT Messenger itself, so the app can't be opened even on an unlocked device.

Turn it on

1. Go to Settings → App lock.
2. Set a password and choose how quickly the app locks when you leave it.

Lock it right now

The ⋮ menu at the top of the chat list has Lock app. It locks every window you have open, not just the one you're in.

App lock vs chat lock

• App lock protects everything behind one password.
• Chat lock protects individual conversations, even once the app is open.