The risk is huge and wide-ranging. The software that manages every operating parameter of modern cars could be attacked as happens with our computers through a simple e-mail.The easiest access for a potential "hacker" are the Bluetooth and connection systems via smartphone using special app, to get even files that simulate normal music tracks acquirable via audio system and instead they are real viruses ready to corrupt the vital functions of the car. The defense systems are similar to those of the most advanced anti-virus computer to prevent the access of incoming data from the server if not certified by the carmaker.Several manufacturers are already hiring specialized companies to protect from the birth all the new models.