[clipclopflop]

HW wise, the older units were intel atom based cpu (latest gen is amd I believe?) - the hardware is typical embedded stuff - cpu + eMMC + bt/wifi mcu + cellular daughter card. OS is linux + QT UI stuff. I would expect things have changed for newer HW revisions, but the previous gen did not utilize encryption (dmcrypt) so all data was unprotected at rest.

[clipclopflop]

Following up on this - the actual 'self driving' part of the HW stack is an entirely separate board with 2x custom ARM chips on it. The HW/SW is much more locked down and the OS/Data is not accessible. I believe a lot of the self-driving info gleaned by types like green were built up from the first generation of Model S cars where the 'self driving' HW was much less defensible and it was much easier to gain access to it.

[pas]

what does locked down mean here? this is almost the same situation that happened with DRM stuff like HDCP and the BluRay (?) encryption key (that was then posted all over the net), right?

at best the decryption key is somehow custom to each car, not reproducible (eg. it's made by some random manufacturing process), and then Tesla reads this and encrypts everything in a way so that only that key can open it.

but then do they keep every bit of decrypted data "on die"? (or they encrypt RAM too?)