>To this day I don't know how the hackers did it. Thru social engineering on phone? In person at an agency with fake id? Or a corrupt insider working at T-mobil

>To this day I don't know how the hackers did it. Thru social engineering on phone? In person at an agency with fake id? Or a corrupt insider working at T-mobile. Usually these SIM swaps are from an outside person socially engineering over the phone or in a store. It's not unheard of to have an insider though.