I have T-Mobile. 6 weeks ago my phone could no longer access the cell network. The support agent told me that someone went into a store, claimed to be me, and was able to change the SIM card. The history showed the employee in the store verified me by my driver's license. We changed the SIM back and supposedly locked the account.
I use Google Auth OTP for all the accounts that I can, and as far as I can tell nothing was breached or stolen, but I wouldn't rely on your cell phone or number for anything whatsoever, it's way too easy to socially engineer, or have some easily corruptible retail employee steal from you.
I use Google Auth OTP for all the accounts that I can, and as far as I can tell nothing was breached or stolen, but I wouldn't rely on your cell phone or number for anything whatsoever, it's way too easy to socially engineer, or have some easily corruptible retail employee steal from you.