Anti-cheat protections use exactly the same methods rootkits use to "monitor" your system, it's one of those things we grudgingly accept when playing multiplaye

Anti-cheat protections use exactly the same methods rootkits use to "monitor" your system, it's one of those things we grudgingly accept when playing multiplayer games. It's not even what Valve and co are doing with the info, it's similar to the Sony rootkit case where the main worry would be that the rootkit could introduce security vulnerabilities.