this post was submitted on 28 Dec 2025
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I imagine they’ll try to make this increasingly difficult; maybe even impossible.
It already is for a lot of modern cars. Especially EVs. I imagine they are so tied into the functionality of the car that it makes the vehicle impossible to drive without the OEM headunit.
Couldn't a savvy user just find an exploitable firmware revision, never connect the vehicle to the internet, and install aftermarket software or hardware to bypass the authentication checks? It would be more of a pain in the ass than the previous drop in system, but I'd imagine it's possible.
Right, but that requires somebody to find and document exploitable firmware revisions, create and distribute hardware/software to exploit them, develop the aftermarket software/hardware, and all that potentially separately for each car model. And then that just becomes a war with the manufacturers, who might try to update their firmware more aggressively, lock things down more, and threaten/sue people working on such things.