I have a question. What do you think a rolling code style security system does if the thief is amplifying your key fobs signal by standing in your driveway at 3 am and then transmitting it to your door lock? Because we’re talking about keyless entry where you don’t have to push any buttons on the key fob it just has to be within three feet of the vehicle. They are literally using your key to unlock your door. The key is always transmitting. The vehicle is always receiving. At the point where they have access to the interior of the vehicle they can just pull the fuses for the horn and lights and then pop the transmission shifter cable off the transmission control lever and manually put the car in neutral. This attack takes maybe ten minutes. At that point they can literally just roll the car onto a flatbed and drive away. The flipper zero costs $169 USD. But you can make one from parts for much less. A GPS blocking tool costs around $15. A signal repeater isn’t expensive either. Keyless entry on the whole is broken.

You may stop joyriders and petty thieves. But you won’t stop anyone looking to steal a car who has the know how and who is looking to sell your car for parts. The fact is, a lot of premium cars are vulnerable to attacks like this.

And before you even start about what I know about it, literally I’m an avionics tech. Rolling codes and frequency hopping is how we keep unfriendly forces from listening in on comms. Electronic attack and defence is literally what I did in the Navy for twelve years.

Rolling codes are a good security feature. But they do nothing to stop the attack that other articles on this subject better explain.

https://www.cbsnews.com/news/cars-hacked-stolen-keyless-vehicle-thefts/

https://arstechnica.com/information-technology/2023/04/crooks-are-stealing-cars-using-previously-unknown-keyless-can-injection-attacks/

https://www.locksmiths.co.uk/faq/keyless-car-theft/