Ultima Online is trying to solve some exploits and hacks recentely discovered with a new patch. Is that enough?

• Players can no longer trade an equipped item if they have a full pack

• It is no longer possible to get a pet inside of a bag through the use of an exploit

• Fixed a bug that could cause rental vendors to drop their items under certain circumstances

• Fixed an issue that could allow players to break into other players houses
  

But players are already complaining on the Stratics forums that this is not enough. There is still a bunch of unfixed bugs that can be exploited in PvP and player transactions.