Originally Posted by
TheAnimus
Whilst you have an air gap security system, this is an unusual use case. Many people find the need for connections fairly frequently, be it USB sticks or network or press play on tape.
Ultimately, software has this almost unique issue of being exploited so cheaply, so readily, so parasitically. The closest to things we've seen before are biological.
The problem here is that there is an on-going maintenance cost, rather than a power drill, think fast bread nuclear power reactor. Now, unless its in full shutdown, bits of it are going to wear out. If your in a completely deserted place, its fine, let it melt, if not, it is rather important that the system stays up to date, the vendor doesn't want to use the old flawed plumbing, it wants to use the newer stuff, it is better and more robust.
Given the events of blaster, I think it is a fair approximation, certain software is so ubiquitous, it can and will spread nasty things via flaws. It is this danger, that means there is a need for ongoing commitments to maintaince. People who didn't update their ruby framework are finding out at the moment the danger they pose, not just to themselves, but others, as these web servers help spread infection far faster than domestic machines normally do.
From the side of a vendor, I really understand them forcing time limit expiration on things you buy. With that in mind, all purchases are effectively a lease.
I think it makes more sense to always consider it a lease vs a rental.