A lot of games today have anti-cheat: Fortnite, Valorant, and even Roblox are examples. All these anti-cheats run on different privilege levels of your computer. Your computer has four levels: The application level (level 3) allows the anti-cheat to monitor your software when the application is open. Levels 1 and 2 can access your memory and code more, but at level 0, that's where things get serious.