How to change the lock screen on your Windows computer by adding custom backgrounds and at-a-glance apps

You can change the lock screen on your Windows computer by customizing the background image and specifying what supplemental ...

4 ways to change and customize the lock screen on your Mac

You can change the background image of your Mac's lock screen to make it your own, as well as add a custom message and a new ...
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 ...