You could make a "drive by" (in the literal sense) gizmo that bricks vulnerable cars, maybe even causes expensive physical damage. Can you start a car fire by c

You could make a "drive by" (in the literal sense) gizmo that bricks vulnerable cars, maybe even causes expensive physical damage. Can you start a car fire by controlling fuel pressure pumps and injectors, or destroy a turbocharger? Stick a ten minute delay in your injected code and you're long gone. GM (or really, virtually any car manufacturer with the possible exception of Tesla) would be caught flat-footed. Firmware in consumer products (especially where radio or network access is present) needs to have a security model. Car makers have been betting they didn't need to spend much money worrying about security; it doesn't look like that bet is going to pay off. If this becomes a thing that any kid with $30 of electronics can do, dinosaur makers are toast.