[knorker]

> But Bluetooth is basically a giant blast of security vulnerabilities

Yes, but this is exactly the point. And running OpenBSD is not a problem, until you run into a brick wall like this.

If you don't need it (and things like it), then that's all fine. As with everything, the last 10% takes 99% of the work, and code, and therefore contains about 99% of the security problems.

IIRC they were also very late to being able to run virtual machines, and even USB.

If you simply don't implement the things you don't need for a use case (e.g. a webserver) then that scales down to the fact that the compressor controller chip in your (dumb) fridge is not remotely exploitable too.