How to Use WHATSAPP FINGERPRINT LOCK on Android

Android fingerprint lock

As an additional privacy measure, you can prompt fingerprint lock when you open WhatsApp on your phone. When this is enabled, you'll have to use your fingerprint to access the app.

To enable fingerprint lock:

Open WhatsApp --- tap More options --- Settings --- Account -- Privacy.

Scroll to the bottom and tap Fingerprint lock.
Turn on Unlock with fingerprint.
Touch the fingerprint sensor to confirm your fingerprint.
You can tap to select the amount of time before fingerprint authentication is prompted.
Turn on Show content in notifications if you’d like to preview message text inside new message notifications.
To disable fingerprint lock:

Open WhatsApp ---tap More options ---- Settings --- Account --- Privacy.
Scroll to the bottom and tap Fingerprint lock.
Turn off Unlock with fingerprint.


Note:

You can still answer calls if the app is locked.
In order to use fingerprint lock, you'll need to have it enabled in your phone’s settings.