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 ...

In the interests of enhanced privacy, some third-party iOS apps include an option to require passcode or Face ID authentication before they can be opened, even though the iPhone is already unlocked.

Android lets you protect your device by creating a password, PIN or gesture lock to keep people from using your phone without your permission. But what if you don’t want to secure your entire device?

You can’t really go too far when it comes to phone security, considering everything of importance we put on these compact devices—from bank account apps to our most intimate conversations—and while ...

Guide When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. One of the app categories Apple is trying to 'Sherlock' this year is app locker. The ...

iOS provides developers with an API to lock apps with Face ID or Touch ID. However, not every app has this option, and there’s no way to completely hide apps from your device. Luckily, “App Lock” is a ...

It's no secret that smartphones contain a wealth of personal information, and our iPhones are no exception. From social media to financial apps, it's crucial to keep your data secure. One way to do ...

Forbes contributors publish independent expert analyses and insights. Zak Doffman writes about security, surveillance and privacy. Updated on Jan. 13 with further updates on locking apps on Android.

The Galaxy Z Flip 5 finally has a big, bad cover screen that Samsung is calling the Flex Window. It dwarfs the previous Galaxy Z Flip 4’s display and is just begging to be used with full-sized apps.

Conversations hidden with the new ‘Chat Lock’ feature will live in a protected folder. Conversations hidden with the new ‘Chat Lock’ feature will live in a protected folder. is a senior reporter ...