Hacking a Tesla Model S: What we found and what we learned

"When an industry without experience in Internet security starts connecting things to the Internet, it typically makes a number of mistakes both in how it implements secure systems, and how it interacts with the security community.

"My colleague Marc Rogers and I set out to audit the security of the Tesla Model S because we wanted to shine a light on a car that we hypothesized would have a strong security architecture, given the Tesla’s team’s deep software experience. Out of this research, we hoped to be start a conversation about simple and clear security best practices for the automotive industry."

https://blog.lookout.com/hacking-a-tesla