> Go ahead and lock down specific purpose computing devices, like ATMs, fridge, mouse firmware.
There are at least a few grey areas of such a carve-out that I'd like to ask about, but I wonder if it's even necessary. What if there simply weren't any exceptions?
The ATM would still be locked down - the owner would possess the keys. Business as usual.
The fridge and mouse either wouldn't be locked down or the keys might be physically present somewhere on them. Probably either neutral or a win for the consumer depending on the specific circumstances.
Something like a fridge should either be running a proper OS (and thus fully under the control of the user) or else shouldn't be connected to the network in the first place. Unpatchable proprietary network connected black boxes expected to have a service life of well over a decade are a recipe for disaster after all.
I think general purpose computing devices should be open.
This is a moralistic argument, putting legal and business reasons to the side.
Go ahead and lock down specific purpose computing devices, like ATMs, fridge, mouse firmware.
The practice of setting up fiefdoms to become the landlord is an abhorrent practice.