" ... cutting new keys and pushing an update to supplant the old key ..." What about the keys to say Windows updates? If someone manages to nick the key you c

" ... cutting new keys and pushing an update to supplant the old key ..." What about the keys to say Windows updates? If someone manages to nick the key you can be sure that they would push a new one and revoke the "old" one whilst simultaneously deploying nasties. 100M (whatevs) is chicken feed compared to the rewards from compromising something like Windows updates. Bear in mind that a simple pecuniary minded criminal gang might leverage a lot of coin mining or whatever for a while and generate an awful lot of electricity usage but a state level actor gets the real crown jewels: information. Anyway, that's far too complicated when there are far easier ways to crack rather a lot of the world. Look at the Solarwinds compromise. That sort of thing won't (and wasn't) be the last. Supply chain attacks in the IT world are probably the worst in terms of fall out and the potential losses are vast in comparison to a bit of shiny carbon falling down the back of a sofa. However, for some reason, in this most bizarre modern world we find ourselves in, we still fixate on a bloody diamond!