Car thieves can easily hack remote keyless systems

From USA Today: "Those remote key fobs nearly all automakers offer -- turns out they're fairly easy to hack so the bad guys can unlock your car and high-tail it before you even finish your shopping. Your only advantage: If your car has a remote that still requires a key, the bad guys can't start it easily, even though they can open the doors and trunk and get inside. Cars that have keyless entry and the push-button ignition switches becoming more common are in the most jeopardy. The thieves can, in fact, start those vehicles because the same purloined signal that opens the doors also tells the push-button system it's OK to start the car when somebody pushes the button." [More]