While that is true, you WILL see signs of tampering. No key means you need access to the wiring. What person is going to spend the time not to disturb anything compared to the quick and dirty method? They have a key!
HISS really does nothing but help insurance rates. How does it keep your bike from being stolen? All it takes is two guys and truck and it's gone in under 30 seconds. They are going to part it out, so the ignition and the ECU are worthless to them, the rest of the bike is worth something.