It's a scary thought: you are driving on the highway, and as hackers control your vehicle remotely, you lose control of your brakes.

It's not only possible, this video shows that it has been done successfully.

Two hackers, in efforts to educate people, hack into a Jeep and control the radio, windshield wipers, brakes - even the steering, and are able to disable the vehicle from miles away.

(Youtube, Wired)