How to use the auto-lock feature on Android

To protect your encrypted messages from falling into the wrong hands, you can enable the Auto-lock feature in the Proton Mail(nova janela) app.

This feature will prompt users to either enter a PIN up to 8 digits or to use biometrics to open Proton Mail. You can set your device to automatically lock every time you close your app, or after a set amount of time.

To enable auto-lock, follow these steps:

1. Go to Settings

2. Select App customization > App Lock

3. Choose Biometrics or device lock. If your device supports fingerprint, you can enable this option. Otherwise, simply set a custom PIN specifically for the Proton Mail app.

4. Confirm your code

Set up the auto-lock timer

Choose for how long Proton Mail can remain unlocked after you stop using the app by selecting Auto-lock timer.