As with many PC games, Street Fighter V suffers from piracy and cheaters - the platform's perennial problems. Unlike most, however, the latest attempt to fix the problem came in the form of a title update bundling a Windows driver - capcom.sys - which disables selected system security features and provides publisher Capcom with administrator-level privileges to the entire operating system and all its files.The problems began with a security update released on September 22nd containing what Capcom described as an '.' In its announcement, the company claimed that that software was not DRM, but was designed such that it 'Sadly, the update did significantly more than Capcom promised. In a thread on social networking site reddit , users tore down the code included with a kernel-level Windows driver file bundled with the software and discovered that it disabled the Supervisor Mode Execution Protection (SMEP) functionality of affected systems, forced the game to elevate its privileges and run at administrator level, and provided Capcom with complete and unrestricted access to the entire host system. In short: it's a backdoor, and one which actively harms the overall security of players' systems.Although the code in the driver disables SMEP only long enough to run a chunk of its own code and then re-enables the functionality, the damage is severe: using the driver, any unprivileged process on the system - including malware - can have its code executed at kernel level without question. Capcom, for its part, has apologised and promised to undo the damage caused. '' the company claimed in a statement on the matter. 'Those who wish to ensure their system's security are advised to check for the driver 'capcom.sys' even after the update which should remove it is installed.