https://www.vice.com/en_us/article/d3n3am/att-and-verizon-employees-charged-sim-swapping-criminal-ring

Last week, the Department of Justice accused nine people of allegedly being part of a crime gang known as “The Community” that hijacked mobile phone numbers to then steal money and cryptocurrency. This is yet another criminal case brought forward against hackers who use a technique called SIM swapping to target bank accounts and, primarily, online cryptocurrency wallets.

Among the alleged criminals were also two former AT&T employees and one former Verizon employee, who helped the alleged criminals by providing private customer information in exchange for bribes, according to court documents.