The Hacker News: he Kit costs less than $20, but is far capable to give away the entire control of your car to an attacker from windows and headlights to its steering and brakes.
The device uses the Controller Area Network (CAN) ports that are built into cars for computer-system checks, and draws power from the car’s electrical system. Injecting a malicious code to CAN ports allows an attacker to send wireless commands remotely from a computer. Once hackers take hold of this network they can control lights, locks, steering and even brakes.