http://www.wired.com/wired/archive/1...key&topic_set=
It's 3 pages, but quite interesting. Writer had a 2003 Civic Hybrid that was stolen, insurance refused to pay, saying he had a transponder and it was thus impossible to steal and he had to be lying.
Fast forward to the 3rd page, he went to a tuner/bike show and the owner told him that he knew how to steal his Civic even without the transponder. He got a series of pulls on the ebrake and turning the key (with the transponder effectively nullified) to start the car.
I didn't know you could do that to a Civic. I know that a lot of electronic security devices have backdoors, but I didn't think they'd be dumb enough to put one on a car.