E-Mail From T-Mobile that IMSI has been changed - should I be concerned
I just got an email from T-Mobile that my IMSI has been changed.
I used to have T-Mobile for cellular on my iPad Pro, but discontinued cellular service and have just used WiFi for several months? When trying to find an answer through Google, it looks like this could be something nefarious. Should I be concerned?
iPad Pro, iPadOS 13