Kigen's Anti-Cheat

I just bought two servers and i already had rcon hacking threats.

I really need a good protection for my servers.

Im kac banned and if i put kac on my server then i cant get on it..

what should i do? What other programs can i use that will make my servers much more secure

please help me. i dont wanna be hacked.

instead of buyin another account just get servsecurity on Your servers.