Mostly unrelated story: I did a security assessment for a small bank that had moved their core processing software from the original HP 3000 hardware platform to a hardware emulator environment running on windows (something like this https://www.stromasys.com/solutions/charon-hpa/)

We cordoned it off from the network assessment out of concerns that it would be fragile. The assessment went as expected, but as we wrapped that portion the bank manager wanted us to have a go at the HP off hours ‘just to see’.

Never did figure out which part died, emulator or emulatee, but it went down hard within about three seconds.