Get An AntiCheat

Do you not want people cheating on your server? Good, but if you don't have an anticheat plugin, you won't know who's cheating!

• The easiest one is GrimAC, which is free, open source, and does its best to catch cheaters
• If you want more control over what happens for each check, or Grim isn't your thing, use Vulcan, which is paid, and you need to have a SpigotMC account to be able to purchase it

But don't rely on anticheats that are bypassable by hacked clients (if those haven't been patched yet), or plugins that just advertise themselves as "this server uses X anticheat", and then that's it, you can catch hackers!