I do industrial controls. The software we are forced to use is usually proprietary, sometimes old, and always very poorly written. Plus there's the networking issues. A huge amount of stuff is just statically addressed, so I might be switching the ethernet port on my laptop from an 89.89.x.y subnet, to a 10.10.i.j subnet, to a 192.168.a.b subnet, and back again multiple times a day. When IT first took admin rights off our laptops, it took away our ability to change IP addresses. There may have been some small amount of malicious compliance.