Wired magazine published a story Tuesday that reveals something rather disturbing: hackers can take control of new lines of cars that connect to the Internet. As two hackers prove in a video for the site, any person with know-how and a laptop can take control of a 2014 Jeep Cherokee’s air conditioning, stereo and engine from miles away.

The two hackers are Charlie Miller, a St. Louis-based former NSA analyst, and Chris Valasek, a director at the security firm IOActive. Both men have been probing vulnerabilities in connected automobiles for years. But until now, they had only ever been able to hack a car’s system from a laptop inside the vehicle itself.