How to lock your SIM on Android

Your phone's SIM card allows the device to make calls, send texts, and connect to the internet. The SIM card provides a phone ...

How to lock your iPhone with a passcode and make it 'virtually impenetrable' to strangers — from your phone or remotely, if it's lost or stolen

If you're looking to protect your phone's data, here's how to lock your iPhone with a passcode, or lock it remotely if it's ...
PC Magazine

Can You Keep a Secret? How to Hide and Lock Apps on Your iPhone

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 ...
CNET

Here's How You Can Lock and Hide Apps on Your iPhone in a Few Easy Steps

Sometimes my nephew will want to watch a monster truck video on YouTube so I'll pull up a video and hand him my iPhone. But if I take my eyes off him for a moment he finds a way to shoot a video on my ...