What exactly is on my SIM card on a IPhone 7 Plus
iPhone 7 Plus
It does not contain data from your device, it contains information about your device that identifies your device with your cellular carrier and allows it to be used with that providers infrastructure and features.
I guess it would depend on exactly what and how it is being hacked. You might want to contact you carrier. Or perhaps this article will help:
If you think your Apple ID has been compromised - Apple Support
Can you get your carrier to change info on your device so I don’t keep getting hac
Can you get the carrier to change SIM cards info so I don’t keep getting hack
What exactly is on your sim card
