silly hackers

well the other day i logged on our server to see our entire world to be WE = world edited it was so funny when i got to the chat commands and they guy that asked what happened was the person to do it :P i mean what an idiot he had op gamemode 1 = creative and admin powers i didnt give him them haha so he op-ed alot more people on our server and sadly i get banned from my own server so funny that i the unban myself op me admin me and ban everyone that helped the server is back to normal everything fixed no one will do that again