How to Unlock the PUK Code on a Mobile Phone If Locked?. GSM phones give you the option to set a PIN code on the SIM card as a security measure.

A PIN can log you into your computer faster than a password. Here's how to create one in Windows 10.

Your Android lock screen pattern isn't as safe as a PIN code What's safer? Using a numeric PIN code to unlock your Android smartphone or relying on a finger squiggle? The answer might surprise you.

Google is testing an experimental feature that allows one to unlock the Chrome OS with a PIN instead of a traditional password. The feature is in the developer stage, but here's how you can put it ...