Riot Games explained that the new Vanguard update is designed only to stop advanced cheating devices, not to harm normal computers. Some cheaters use special external hardware called DMA devices to secretly access game data and avoid detection. Vanguard now blocks those devices by using a standard Windows security feature called IOMMU protection. For regular players, nothing changes: >Your PC will not be damaged. >Normal hardware and software are unaffected. >Games and programs will work normally if you are not using cheating hardware. The DMA devices themselves are not destroyed or damaged. They just can’t be used to cheat in games like Valorant and League of Legends anymore. Riot says the goal of the update is to reduce cheating and keep matches fair.