Losing your iPhone can be pretty devastating. And it won’t help either if you find out that someone decided to use your SIM as his own. Thankfully, there is one way you can prevent misuse of your SIM card. You can set up a SIM Card Pin on your iPhone. Anyone attempting to use the SIM will be required to first input the Pin, thereby preventing its misuse.
In case you are not aware, all SIM cards have a default PIN. You can add a new pin to replace that default pin. Just make sure that you never forget the new PIN. Because there simply isn’t a quick way to unlock it. That said, here’s how to set up a SIM card pin on your iPhone.