The average enterprise software is swiss cheese. It seems the hacker news type that likes to post just doesn't realize how much business/enterprise software exists out there. An F100 company has thousands, maybe tens of thousands of applications that you've never heard of and never will unless you work for them. Industry has applications ran by relatively few people, but it's keeping processes that make the modern world work alive.

Worse is everyone is like "Well, this stuff is protected or air gaped". Yea, it's behind firewall, or even private networks commonly, but the moment you get inside that network you have tons of lateral movement and could cause unbelievable damage in minutes.