Putting a PIN on your SIM does not protect you, it means you'll have to buy another SIM when you fail to remember your PIN. And your carrier is going to do it because they don't pay their reps enough to care about security or verifying that the caller is you. Hackers who have figured out your banking or other passwords and want to use your number for two factor are going to just call your cell phone company and have your number switched to another SIM. If they want to get into your banking or something, they have to already know something beyond your phone number. They're stealing it to sell your phone, they don't care about making outgoing calls from your number, they can already do that by spoofing your number as their number on an outgoing call. Your SIM will come with a default PIN set by your mobile carrier. If somebody steals your phone they're not trying to get free data or call time for the few hours before you can contact your carrier and deactivate it. (Not far behind it was people forgetting their device pins some how.) Do not put a numerical pin on something that you only have to enter when you switch SIMs. Taking calls for Apple, the #1 call driver was people not remembering their Apple ID password. Which means you're gonna pay your carrier for a new SIM. DO NOT PUT A PIN ON YOUR SIM! You know why? Because unless you use the same pin as on EVERYTHING, then you are gonna forget that thing. NOPE! Speaking as someone who worked selling cell phones for years, and recently worked for a stint as an Apple Care advisor.

Sim pin verizon iphone