So on aBlockz Zombie I happen to be the person who catches the majority of hackers.
Most people who get banned make an appeal stating they weren't hacking which they obviously are.
99% of them use the client from minecraft.org which is exactly like today's default WoM.
Since the client from minecraft.org (MCORG is what we call it) is based off of WoM and follows the motds, but has the default higher jump and speed, is there any way to detect it and prohibit use on the server kicking them saying like "use xwom" or something? It would reduce the amount of hackers by 80%..
I usually catch 3-4 hackers a day:3 to let you know how bad it is.