@thegamer355 also you can transmit viruses in a simple way...
@OP: Just use the Ban(cheaterid) function or your custom way for banning when detect cheats... (also make sure you have some proves for the ban).
I can record proof for the ban, because that server is a RolePlayGaming server that has a panel, etc where players can post unban request, and if i don't have the proof they get unbanned.