Riot Games Blocks DMA Cheat Firmware in Valorant, Impacting Cheaters
Riot Games has implemented a new update to its Vanguard anti-cheat system for Valorant, targeting DMA-based cheat firmware that uses SATA and NVMe interfaces. This update has rendered the affected DMA firmware unusable on the same Windows installation, effectively turning expensive cheat devices into 'paperweights.' DMA, or Direct Memory Access, allows hardware devices to access system memory without CPU intervention, which can be exploited by cheat devices to manipulate game memory. Riot's update includes IOMMU enforcement, a hardware feature that controls device memory access, to prevent unauthorized access to Valorant's memory. This move follows Riot's previous discussions on enhancing security measures against such cheats. 
