https://www.vice.com/en_us/article/n7wkag/call-of-duty-warzone-sms-verified-accounts-buy

A group that sells cheats for the massively popular online game Call of Duty: Warzone is selling accounts that are already connected to phone numbers and verified, bypassing a security feature implemented by the game's creators and making it easier for cheaters to quickly move to another account after they are banned.

The development highlights the ever-evolving cat-and-mouse game between game studios and those who develop and sell cheats in a multi-million dollar underground industry.