What the New Valorant Anti-Cheat Update Does
The latest Valorant anti-cheat update is a hardware-level upgrade to Riot’s Vanguard system that tightens memory protections so external DMA cheat devices can no longer read live game data. Instead of hunting only for suspicious software, Vanguard now watches how connected hardware accesses system memory and blocks devices that impersonate trusted components like storage drives. Riot publicly mocked affected cheaters by calling their gear “$6K paperweights,” signaling that some premium DMA cheat hardware, which was sold around USD 6,000 (approx. RM27,600), no longer works at all. According to PC Guide, Vanguard can detect this hardware through SATA and NVMe connections and then stop it from talking to the PC. In many reported cases, cheaters must reinstall Windows before they can even use their machines normally again.
How DMA Cheat Hardware Used to Bypass Detection
DMA cheat hardware relies on Direct Memory Access, a standard function that allows devices to read system RAM without routing every request through the CPU. In a cheating setup, a dedicated DMA device connects over PCIe or storage interfaces and reads Valorant’s memory from outside the normal software stack, feeding wallhacks, ESP, or radar tools running on a separate machine. This approach made many DMA cheat setups difficult to flag using traditional anti-cheat checks, because the suspicious logic never ran on the player’s main operating system. Digital Trends notes that these devices often impersonate trusted storage components, sneaking into the system as if they were ordinary SSDs or drives. By posing as legitimate hardware, they exploited gaps in older protection schemes and stayed invisible to most software-only anti-cheat systems.
Vanguard’s Hardware Memory Protection and IOMMU Lockdown
Riot’s update tightens hardware memory protection by enforcing stricter IOMMU rules, which define exactly what memory regions each device can access. When Vanguard detects a suspicious device masquerading as a SATA or NVMe drive, it can clamp down those permissions so the hardware can no longer read live game memory. According to Digital Trends, the patch “blocked the majority of DMA firmwares using SATA/NVMe,” and players saw Vanguard trigger an in-game IOMMU restart warning before their DMA firmware became unusable. This behavior matches how IOMMU is designed to respond when a device insists on probing memory it is not allowed to see: the system raises hardware faults or becomes unstable instead of handing over protected data. In effect, Vanguard cuts the data pipeline that DMA cheats depend on, neutralizing their advantage at the hardware level.
Did Vanguard Brick PCs or SSDs?
The update sparked a wave of posts from affected users who said they could not boot into Windows and believed Vanguard had damaged their SSDs. Riot pushed back on that narrative, stating that Vanguard does not damage hardware, disable real SSDs, or permanently brick standard PC components. The company says the instability comes from cheat devices that keep probing protected memory while IOMMU protections are active, which leads to system faults and, in some cases, forces a Windows reinstall. PC Guide reports that Vanguard now targets firmware connected through SATA and NVMe, which explains why cheat devices disguised as storage hardware are hit so hard. For legitimate players, Riot insists that ordinary drives and components are not blocked, though the possibility of a false positive remains a core fear in the community.
Security Gains and the Escalating Arms Race
For competitive players frustrated with cheaters, this Valorant anti-cheat update looks like a clear win: Vanguard can now neutralize high-end DMA cheat hardware that once slipped through detection. At the same time, the move intensifies the long-running cat-and-mouse game between cheat developers and anti-cheat teams. Kernel-level tools that influence IOMMU behavior give Riot powerful options but also deepen trust concerns, because a game’s anti-cheat now influences how hardware talks to system memory. Some players celebrate ruined cheat rigs, while others worry about what happens if legitimate devices are flagged or if similar techniques spread to more games. The update shows where the industry is heading: security systems that operate closer to the hardware, confronting cheats at the memory access level instead of only scanning software, and redefining the boundary between game security and system control.