The other thing to consider. Many people use a Google Voice number for 2FA.

Doubtful you can call Google and get them to change the GV SIM or whatever.


Main problem is that some institutions won't accept GV number for 2FA so you're stuck using a regular mobile number for SMS for 2FA.

I haven't dug into it much but there's a push for passkeys. Not sure if that's better or worse for preventing these kinds of ID theft such as SIM jacking.