alt Hacker News> We all know they are inefficient and weaponized by hackers.
Name an exploit in EAC/BattlEye/Vanguard/FaceIT/whatever other big name anticheat middleware (though Vanguard and FaceIT don’t sell their services I think) that has actually been used for anything.
Genshin Impact’s driver got used as a vulnerable driver that one time, yeah. EAC had an exploit to inject your own code into processes, but that quickly got patched (https://blog.back.engineering/10/08/2021/).
ESEA's anticheat was used to mine Bitcoin on the players' computers. They are/were a major competitor of FaceIt. They supposedly had to pay a $1 million settlement over it.
So not an exploit, but even worse.