Sim swapping is a growing concern, and carriers are taking it seriously. Here's how to protect yourself with a Sim transfer PIN.

How to activate and modify a SIM card lock on an Android phone Setting up a SIM card lock requires you to enter the default passcode set by your operator.

Need to access your Android device's SIM tray but can't find the ejector tool that came in the box? All hope is not lost. There are a few things you can try.