Finally got back my T-mobile account (yes, it was a sim swap, meaning that someone socially-engineered T-mobile itself to take over my phone number).

Had you given T Mobile any special recovery instructions? I understand they will accept them (like a special password to provide to reset). Am curious if the social engineering bypassed any special notes.

co founder of @metamask . Making computers behave for us.

SIM Pins (which is what you might be referring to) can help protect against a pure socially engineered attempt, however, unfortunately, more and more SIM Swaps happen as a result of a telco employee being coerced/bribed, in which case they can simply bypass the pin.