False V2V inputs could cause a car satnav to divert to an alternative route. If the data fusion is done wrong, or if external visibility is very poor, it could

False V2V inputs could cause a car satnav to divert to an alternative route. If the data fusion is done wrong, or if external visibility is very poor, it could rely on single source data (V2V without confirmation from an on-board sensor) and swerve or engage emergency braking. If an attacker has access to disable/deceive, e.g., the microwave sensors (via software attacks, or by jamming) then it becomes quite possible. There is lots of research in the topic though, so I'm fairly confident most V2V systems will be robust, but it depends on regulation. If they froze capability at a specific 'approved' version then attacks could become serious. Especially for systems using lots of ML, at higher levels of autonomy. At the moment it seems like Looney Tunes attacks (draw a picture of a tunnel with the word TUNNEL on it, paint the road markers towards it) work amazingly well.