In previous articles we have described how, in the future, new cars will be more and more equipped with electronics to increase drivers' safety and comfort. If car industry approaches computer technology, should we be concerned about the same threats? At Def Con conference, in Las Vegas, Charlie Miller and Chris Valasek (two IT security experts) have shown in detail the techniques used to ”hack“ a Toyota Prius and a Ford Escape. By connecting a laptop to the onboard electronics, it's been possible to ”hack“ the two cars, taking, in fact, control of the car and accelerating automatically, preventing use of brakes and making the steering wheel vibrate. The good aspect of this story is that, to be able to ”hack“ the vehicle, it was physically necessary to connect a laptop to the car. But what might happen if the attack is conducted via Bluetooth?