A China-based company was able to successfully hack into a moving Tesla vehicle using WiFi.
Keen Security Lab hackers posted video of them controlling a Tesla by doing things like opening up the sunroof, turning on windshield wipers and even hitting the brakes -- all remotely.
Tesla says it has patched the vulnerability and was glad Keen Security Lab told them about it before announcing it publicly.
The hack is a cautionary tale, according to Vera Security in Palo Alto, not far from Tesla's Fremont headquarters.
"Where there's that openness, there's also that capability to do bad things," Vera Security CEO Ajay Arora said.
Vera Security tracks car hacks like computer hacks, and said the two are very similar, especially with so many car companies adding more technology to vehicles.
"We've been driving around in computers for a while now," Arora said.
The hack demonstration from Keen Security Lab comes as Tesla plans a software upgrade Wednesday night, which will be pushed electronically to customers.