PunkBuster is the original Anti-Cheat system to play online multiplayer games.
Real-time scanning of memory by PB Client on players' computers searching for known hacks/cheatsThrottled two-tiered background auto-update system using multiple Internet Master Servers to provide end-user security ensuring that no false or corrupted updates can be installed on players' computersPB Servers can optionally be configured to randomly check player settings looking for known exploits of the game engineAn optional "bad name" facility is provided so that PB Admins can prevent players from using offensive player names containing unwanted profanity or racial slurs