It’s not easy, but it’s doable and it’s been done already. Andrew Brandt has enough detail to make you feel better about buying a car with so much software.
How hard is it to hack a car?
Very. The teams of researchers working on each hack — yes, it took teams — spent months solving difficult problems. They had to heavily modify the software running on the in-car computer so that it would give them access to the commands necessary to interact with the car.
In other words, these were not your average script-kiddie grease monkeys.
Is my car vulnerable to hacking?
Probably not. For one thing, the car has to connect to the Internet and possess a particular flaw that allows attackers to access its internal network, or the attackers would need physical access to the car.
What? Me worry?