Dare I bring up the Bloomberg article without causing a shitstorm? I remember reading around that time a (I think) presentation on how to trick / hide against x-ray tomography etc but I can't find the link to the source if anyone has it?
I'm quite sure that the issue was just a faulty IPMI as I've seen it happen before with older units but I had a good laugh.
I'm a believer in Murphy's law where whatever can happen will happen. Supply chain attacks are quite possible, would be very fruitful and therefore must be happening. But will we ever get the truth from the big vendors? I don't think it will happen any time soon but with this x-ray technology, it will be way easier to detect them.