Three months since the first fatal crash involving a Tesla driving in autopilot mode, hackers have taken remote control of a Tesla Model S from a distance of 12 miles, interfering with the car’s brakes, door locks, dashboard computer screen and other electronically controlled features in the high-tech car.

A team of Chinese security researchers – Samuel LV, Sen Nie, Ling Liu and Wen Lu from Keen Security Lab – were able to target the car wirelessly and remotely in an attack that could cause havoc for any Tesla driver.

The hack targeted the car’s controller area network, or Can bus, the collection of connected computers found inside every modern vehicle that control everything from its indicators to its brakes. In a video demonstrating the vulnerability, the hackers targeted both the Tesla Model S P85 and Model 75D, although they said it would work on other models too.

This is a problem with having software control a car.