Kigen's Anti-Cheat

Today in my css server someone started talking in console with zblock and kac installed with rcon lock how is this possible and how do i fix it? i checked the logs and it didnt come up with anything i banned the person but how do i stop this type of attack or exploit?

Currently its the lua scripting community messing around with stuff.


Dont worry, most likely it was just the script that makes it look like console but it really isnt.