In fact, it’s important to know how to lock apps on iPhones to keep your information from falling into the wrong hands.

Find and open the WhatsApp app on your iPhone. Tap on the Settings icon located in the bottom-right corner of the screen.

Apple's latest and greatest user interface is available for older iPhones too (back to the iPhone 11, not models before), bringing forth an all-new Lock Screen with customisation options.

Simply press and hold on your lock screen, tapping on the Customize button that pops up. After you select the lock screen to ...

But it’s the principle of the thing. The iPhone’s security is only as good as the Lock Screen password. And who knows what else can happen in a crowded place with people waiting for their ...