This is a fun post. It's sort of mind-blowing to think about in the era of 15 page Project Zero posts about reverse engineering nested AMD SVM virtualization control blocks, but throughout much of the 1990s, the modal vector for an actual hacker taking over a network --- any network --- was simply by mounting a world-exposed NFS share. Leendert van Doorn's NFS shell was probably the most important hacking tool of that entire decade.