Call of Duty: Modern Warfare 4 Video Reveals Major Change That Could End Wallhacks for Good
Wallhacks have plagued Call of Duty for years, but in Modern Warfare 4, Activision has a plan to change that.
Call of Duty: Modern Warfare 4 has unveiled a new system called "server culling" to combat wallhack cheats. Wallhacks allow players to see opponents through walls, giving them unfair advantages. With server culling, only visible information is shared between game clients, preventing wallhackers from gaining an edge. This system will be implemented on all multiplayer maps at launch and will also affect future updates like DMZ, Combat Outpost mode, and Warzone.
Activision expects this change to disrupt the cheat marketplace and will continue to improve anti-cheat measures going forward. Call of Duty: Modern Warfare 4 launches on October 23, 2026 for PC, Nintendo Switch 2, PlayStation 5, and Xbox Series X/S.
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