this post was submitted on 19 Apr 2024
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[–] [email protected] 20 points 7 months ago* (last edited 7 months ago) (15 children)

Other way around. Unsupervised OTA updates are dangerous.

First: A car is a piece of safety-critical equipment. It has a skilled operator who has familiarized themselves with its operation. Any change to its operation, without the operator being aware that a change was made, puts the operator and other people at risk. If the operator takes the car into the shop for a documented recall, they know that something is being changed. An unsupervised OTA update can (and will) alter the behavior of safety-critical equipment without the operator's knowledge.

Second: Any facility for OTA updates is an attack vector. If a car can receive OTA updates from the manufacturer, then it can receive harmful OTA updates from an attacker who has compromised the car's update mechanism or the manufacturer. Because the car is safety-critical equipment — unlike your phone, it can kill people — it is unreasonable to expose it to these attacks.

Driving is literally the most deadly thing that most people do every day. It is unreasonable to make driving even more dangerous by allowing car manufacturers — or attackers — to change the behavior of cars without the operator being fully aware that a change is being made.

This is not a matter of "it's my property, you need my consent" that can be whitewashed with a contract provision. This is a matter of life safety.

[–] [email protected] -4 points 7 months ago (2 children)

You do realize your entire first point is invalidated by the comment you're replying to? I just said the customer has to press a button on their phone to initiate the update. On that same phone they can view release notes that clearly outline the recall. Additional on first use, the car will display those same release notes on the screen.

Sure, safety vs convenience is a huge factor in software development. The biggest factor to safety is unpatched software. You know, the kind that requires significant effort to update, such as needing to bring your car into the shop to apply.

Overall your doom and gloom argument against OTA safety updates is pretty weak.

[–] [email protected] 1 points 7 months ago (1 children)

Oh good, hackers can't bypass button presses. I was worried for a bit, appreciate you helping us out.

[–] [email protected] 0 points 7 months ago

Mr hackerman couldn't get to the car because it crashed first due to a software bug the customer did not have time to take his car to the shop to fix.

The real world is quite different than the idealistic one.

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