https://www.vice.com/en_us/article/3azg9n/activision-bans-20000-call-of-duty-warzone-cheaters

Just as millions of players of Call of Duty: Warzone were gearing up for a new season of the popular online multiplayer game, thousands of them were banned because they were allegedly using an app to help them cheat.

On Monday, Activision de-activated the accounts of around 20,000 Warzone players after the company detected a popular cheat, according to people familiar with the matter.