Fingerprint Sensors have become increasingly popular and common in Android devices, and over the years, the cost of the sensors have come down to an extent that they are available even in phones that ...

To lock WhatsApp on Android, launch the app, tap the three-dot menu, navigate to Settings > Privacy > App Lock, and turn on "Unlock With Biometric." To lock WhatsApp ...

With rising concerns around digital privacy, securing personal chats has become more important than ever. WhatsApp, one of ...