Fingerprint scanners make it easier than ever to secure your smartphone, reducing the need to type in a PIN code or password. Whether you’re locking or unlocking your device or signing into apps, it’s ...

To lock WhatsApp on your phone, go to the app's settings and enable fingerprint lock or FaceID. You'll need to unlock your phone each time you close WhatsApp or after one to 30 minutes. You can ...

Fingerprints, also called dermatoglyphs, develop as early as three months of gestation and are entirely unique to each individual. It’s why they are commonly used as a form of biometric security to ...