Short version of the answer, all vehicle systems in new car operate on a CAN-Bus where the inputs/outputs of all sensors and control units are shared amongst each other.
On a closed system this is okay, but with remote access, all someone has to do is take over the signal for an output (like throttle position) and set it too 100%. Then you are screwed because most people don't know how to turn off their push button start cars even if that input wasn't compromised.
Electric power steering can be taken over too and, in hybrid and electric vehicles, most don't have much if any hydraulic connection to the brakes. Even if they do, the pressure can be locked out by the brake system VSA module and individual braking forces applied with no chance at mechanical override.
Bottom line, if you are a truther or are planning on exposing pesos, buy a car from the 90s or earlier 2000s. Pre-2006 is a good hardline if unsure. Otherwise you can be a passenger in your driver's seat.
For "reasons" [that are beyond me] many vehicles brakes are connected and can be remotely hacked. IIRC jeep was under fire for this.
Short version of the answer, all vehicle systems in new car operate on a CAN-Bus where the inputs/outputs of all sensors and control units are shared amongst each other.
On a closed system this is okay, but with remote access, all someone has to do is take over the signal for an output (like throttle position) and set it too 100%. Then you are screwed because most people don't know how to turn off their push button start cars even if that input wasn't compromised.
Electric power steering can be taken over too and, in hybrid and electric vehicles, most don't have much if any hydraulic connection to the brakes. Even if they do, the pressure can be locked out by the brake system VSA module and individual braking forces applied with no chance at mechanical override.
Bottom line, if you are a truther or are planning on exposing pesos, buy a car from the 90s or earlier 2000s. Pre-2006 is a good hardline if unsure. Otherwise you can be a passenger in your driver's seat.