[cibyr]

The threat is not exactly zero. In some cases, thieves can get physical access to the bus from outside the car, and then inject messages to unlock it, start the engine, and drive away: https://kentindell.github.io/2023/04/03/can-injection/

Sure someone in that situation could also "just cut brakes or put in a pipe bomb" but car theft is a lot more common than assassination, at least where I live.

[kjkjadksj]

There are plenty of cars on the road today where theft is as easy as splicing two wires together. And yet grand theft auto isn’t very common at all even with all of these cars capable of being stolen in 10 seconds are being parked unsupervised on just about every block. Seems there are other filters in the overall system of society that are effective in keeping these unsecured cars from getting stolen today.