Ever felt nervous giving your phone to your kid or to a stranger to make a call? If you're rocking an Android, app pinning is ...

Step 5: Set Up Security Features Security is an integral part of your Android phone. You should set up a PIN, password, or pattern to secure your device.

To set this up, open WhatsApp on your Android device and tap the three vertical dots in the upper-right corner. From the drop-down menu, select Settings, then tap Account.