https://www.dancraft.net/discussion/1664/eliban420

This guys hacks are just ridiculous every time i see him on the server i switch to Hypixel because this man is almost unkillable, just by how he moves. I'm pretty sure he was already banned but if he got past the first ban and ip you should make a kick script so he gets kick every time his account joined or any associated ip connected to his account get kicked automatically.

Additionally, to prevent hacks such as kill aura if you were able to count hits per second you could easily ban 90% of the hackers going all out, now im not a programer but im just tossing ideas.