[fn-mote]

> Almost every car on the road today has an unsecured bus going back to like the 1980s. However you need to actually access the car to do something malicious

See [1] from 2023, where popping the headlight gives access to the bus. Lack of internal security then gives a way to steal the car.

The threat just isn't the same as the one you are modeling.

Security will come eventually, if only to prevent bad publicity.

[1]: https://arstechnica.com/information-technology/2023/04/crook...

ETA: Just as the sibling says...

[kjkjadksj]

It begs to ask why a headlight ought to have a data connection and not just power connection like most other cars of say 20 years ago. But even then when does the arms race end? Someone given enough time can cake apart a car to access any piece of it. A slim jim gets you to the hood release and the ecu of a say 2000 honda civic in 20 seconds. Was this a real world issue however in the 2000s, people hacking into drive by wire early obdii era cars like the s2000 to assassinate them with misdirected inputs or whatever the threat vector might be? Not really. Old fashioned ways to screw with people are simpler and cheaper.