To lock Signal, open its in-app settings and select "Screen Lock." It'll use the same security method and passcode that your ...

The Apple Watch comes with several different ways to lock and unlock the device. Here's a guide on how to use all of them.

If you want to keep certain apps out of the reach of other people, you can lock or hide those apps on your Android phone. I’ll show you how to use your phone’s built-in features as well as third-party ...

You are, we hope, already protecting your phone with a PIN, a fingerprint, or a face (or all three), but sometimes you'll want to add an extra barrier to particular apps—if you're lending your phone ...

With iOS 18 installed on your iPhone, you can add an extra layer of security to certain apps so people with access to your phone can't sneak a peek. With iOS 18, you can add an extra layer of security ...

If you want to temporarily enhance security on your Android device, such as a Google Pixel 8 Pro or Samsung Galaxy S24 Ultra, consider using an app lock. You've probably found yourself in a situation ...

Aside from lock screen and biometrics security, Xiaomi and Redmi smartphones also have a dedicated feature for locking apps. The feature is called app lock. Enabling app lock is recommended to prevent ...

App Lock is one of the MIUI security features that allows you to lock apps with a password, pattern or fingerprint. When enabled, access to certain apps is prohibited unless the correct pin, pattern, ...

Smartphones are a big part of our lives today, and the best smartphones serve as more than just phones. They hold memories ...

Rachit is a Features Writer at AndroidPolice. He has been covering the tech landscape for the past seven years and loves to help people figure out their devices and get the most out of them. He is ...

Looking to prevent prying eyes from seeing things they shouldn't—and avoid unwanted Apple Store charges? You're in the right place. Screen Time, a feature that’s built into your iPhone, can put ...

File locking has a long tradition in computing: you or independently running software wants to make sure that a file isn’t modified or deleted when it’s needed or in use. Because macOS is Unix based, ...