There is no security fix for stupid.
A developer says it was possible to run their own software on the car infotainment hardware after discovering the vehicle’s manufacturer had secured its system using keys that were not only publicly known but had been lifted from programming examples.
https://www.theregister.com/2022/08/17/software_developer_cracks_hyundai_encryption/
And
@corlin
Wow. That's uh.....LMFAO.
I don't even have words for that. I know crunch time is rough but that's... at least change the keys.