One good way to ensure the security of your Evil ISS is to trap Federals. Don't bother trapping Captain Zyrain, as whenever some idiot tries to deploy a fighter in FedSpace or attack a Trader or Alien with a positive alignment and Experience Point value of under 1000 in FedSpace, he is called away magically to help. However, trapping Fleet Admiral Clausewitz and Admiral Nelson does work. They just show up at bad times and destroy your ISS if you're evil. Too bad.

If you are good, and don't have to worry about Federals killing you if you're in an ISS, and you find one, free it. Make it hard for those who have Evil ISS's, because they might get destroyed by them. Not funny for your enemy! What I suggest is if you have an Evil ISS, and you have trapped a Fed with your fighters, then you should put a distinctive number of fighters in the sector, and tell your Corporate members (if you have any) what that number is and what it means, so they can try and trap the Fed again if the Fighters are destroyed by somebody. My favorite is 333, because it spells F-E-D on a phone. But that's just me -- Hey! The number 3 is DEF - Fed Backwards! <g>.