The updated RICOCHET anti-cheat will completely nullify the effectiveness of Wallhack in Call of Duty: Modern Warfare 4

Publisher Activision has launched a combined technical and legal campaign targeting creators and sellers of cheating software ahead of the launch of Call of Duty: Modern Warfare 4. Developers say a major update to the RICOCHET anti-cheat system is being prepared alongside lawsuits intended to “completely eliminate” the illicit cheat market.

The legal strategy has already produced visible results: following lawsuits, the hacking platforms Zenith and Devware have permanently shut down. The closures were reported after legal action brought by the publisher. Developers connected to those platforms issued public apologies to players and warned other cheat creators to stop before they, too, face legal consequences from Activision’s lawyers.

Technical work on RICOCHET progressed during the game’s recent beta test, where the team collected telemetry and other information used to tune detection systems. That data not only helped refine threat-detection algorithms but also allowed developers to identify and fix an internal bug: a conflict between protection modules that had been causing legitimate accounts to be blocked in error.

At launch, Activision says the updated anti-cheat will include a dedicated module to counter wallhacks. The company describes the feature as a mechanism that will strictly limit and filter what information third-party programs can read, with the goal of rendering wallhacks ineffective. Activision has said it will provide further technical details about the new module soon.

Call of Duty: Modern Warfare 4 is scheduled to release on PC and consoles on October 23, 2026.