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I saw this article earlier:
Tesla 'going bankrupt' is endpoint of protests, says local organizer
In the spirit of right to repair, self-hosting, giving a second life to old devices, and limiting data collection by car companies:
- What are some considerations?
- Are there any projects worth keeping an eye on?
An example that came to mind was Valetudo, which is a cloud replacement for vacuum robots enabling local-only operation. Some robot vacuums are easy to install this on, and others require more invasive modifications.
What I've found so far:
I am pretty sure it would be impossible.
That connection I expect to be secured by using signature keys that are private and would need to be released by Tesla to allow anybody connect its car to a different back end.
And remove the need for keys to exchanged and suddenly the impossible is possible. Access to the hardware can always beat any software, it just needs wits. It has to communicate over some sort of NIC or other chip that can be desoldered and replaced with a custom firmware. Or its pins might have a Linux socket connection. Who knows how many insecure holes are there once you have access to the boards. Once you get there it, and enough people care to do it, it can be as easy as an ifixit guide away with an open source board or something, or hopefully just a flash of firmware away.