Used CPU Bans: How Gamers Get Caught in Anti-Cheat Crossfire

A player in Germany acquired a used AMD Ryzen 7 5800X3D only to face an immediate Valorant ban upon launching the game. The user, who posted about the incident on r/PCBaumeister, found that their new processor had been blacklisted by Vanguard on Aug. 12, 2026, after the previous owner allegedly used it for cheating. The CPU was purchased on Sep. 21, 2026, months after the ban took effect. When the gamer contacted Riot Games for assistance, they learned that the hardware identifier tied to the chip carried a four-month suspension—but the company declined to lift the penalty.

The situation highlighted a troubling gap in the secondhand hardware market: buyers have no way to verify whether a processor or graphics card carries an active ban before completing a purchase. Even though the CPU functioned without technical issues, the gamer's Valorant account became unusable the moment they connected the flagged hardware to their system. Riot customer support informed them that reversals were not possible, though the user noted that the ban itself was not a major concern. However, they expressed worry that "everything else from my system is now also on the blacklist."

The case gained visibility on social media, prompting Phillip Koskinas, an anti-cheat specialist at Riot Games, to clarify the company's approach. According to Koskinas, hardware bans imposed by Vanguard remain in effect for a maximum of four months and apply only within Valorant itself. He stated that support staff inform players of the remaining duration when they file a ticket, and that the system flags individual components rather than blacklisting an entire system configuration.

I couldn't find his ticket, but this is pretty unlikely. Our hw bans only last 4 months maximum, they're game-specific, and support tells you the time remaining on the ban when you write in. We also don't add "everything else" onto the denylist when we match one component.

Phillip Koskinas, Riot Games anti-cheat specialist

The practice of hardware-based bans extends beyond Valorant and Riot Games. Multiple anti-cheat platforms employ similar identification systems, though their enforcement policies differ significantly. Easy Anti-Cheat applies bans across all titles using its technology, while BattleEye implements permanent global restrictions. Call of Duty's Ricochet system goes further by contacting Microsoft servers to verify system integrity, making it more restrictive than competitors.

Anti-cheat technology has become increasingly contentious within the gaming community. Players have raised concerns about invasiveness, with some complaining that these systems consume excessive resources and operate continuously. A Valorant update even temporarily disabled certain hardware designed specifically for cheating, sparking debate about whether the company was intentionally damaging devices. Despite these controversies, many gamers acknowledge that robust anti-cheat measures have become essential for maintaining playable online environments free from cheaters, trolls, and griefers.

Based on Koskinas's explanation, the German gamer could eventually resume playing Valorant once the four-month ban expires, or alternatively purchase a new processor and register a fresh account to play immediately. While this path forward exists for the affected player, it does nothing to address the underlying risk that secondhand hardware buyers face. Without a way to check a component's ban status before purchase, even a seller's honest denial of cheating provides no protection against acquiring flagged equipment.