Clarification for cp/m:
CP/M is still in use with Siemens Simatic S5 contol logics, since the original programming and debugging computers were build with CP/M and more modern ones are virtualising the CP/M. There is ofcourse 3rd party software, but it doesn't have "Siemens" tag in it so nogo for some.

PS. Rubber Mallet technique doesn't work if your system is running from bubble memory, SSD isn't a new innovation.