If they’re using md5 (which would be in line with their security practices), the block size is 512 bits. That means that everything less than 64 characters is the same cost
If you’re federating the data to servers you don’t control, it’s impossible to guarantee deletion of it. GDPR requires that users be able to request deletion of their data
Probably not. You’d have to figure out how to jailbreak your car and figure out how to remove that code. Then a software update could potentially undo it, or you could brick it while trying. A hardware fix on the other hand is often much simpler and is far easier to revert
Wouldn’t those be typically handled at an OS level? If you’re using an OS that actually gets updates, you’re only vulnerable to attacks at the kernel or driver level
If they’re using md5 (which would be in line with their security practices), the block size is 512 bits. That means that everything less than 64 characters is the same cost