You might think so, but the encryption used at the time was such that only somebody with quite a few resources (such as a government actor) could reasonably bre

You might think so, but the encryption used at the time was such that only somebody with quite a few resources (such as a government actor) could reasonably break the encryption. It wasn't a win for owners or tinkerers. What's more worrying is that there are a bunch of vehicles out there with security that is going to age * very * fast compared to that used every day (SSH, certs, etc). Consider that the automotive industry might be under similar constraints with regards to autonomous vehicles, something a bad actor could really cause some damage with.