iNizzee

Their is a new hack going around allowing people to get creative on any server. I have had multiple people go on my server using this hack and some were even trying to sell the client to people on my server. I have tried everything i can to stop this. From what i have researched it is a bug with NEI where it doesn't check to see if the player has the permissions to switch into creative it just switches them anyway. The hack changes people gamemodes to creative instantly (which i checked with /whois). They could grab any item or anything out of the creative menu and switch back to survival if they want to. If anyone knows a fix for this please let me know asap.