The Security Mentor

At the Crypto 2007 conference, a team of five researchers reported that they can crack the cipher in a remote-entry system used by many car manufacturers including GM and Toyota.

The attack requires that the attacker have some middling expensive machinery and about an hour of access to the transmitter. Think organized crime here.

Getting your car stolen this way could be even more unpleasant than you think, because your insurance company may be unwilling to believe that the computerized security could be broken. Insurance companies have refused to pay claims on stolen cars that had cryptographic security.