Block breaker doesn't check for permissions to break, thus bypassing bukkit plugins protection (Factions notably)

We do not support bukkit.

You can disable block breakers by setting their id to 0

mikeemoo you do not have to support bukkit but there are protection mods that this block can still bypass. For example, MyTown, PowerTools Chunk Protection, etc. All forge mods. Please implement the blockbreak events that was implemented into forge to help in this case.