I agree. Between 2005-2009, I used to work in systems of factories which has some CNC machines that were using Windows 95 and 98. They were not connected to int

I agree. Between 2005-2009, I used to work in systems of factories which has some CNC machines that were using Windows 95 and 98. They were not connected to internet or company network and were receiving the files required via USB sticks. That was also how Stuxnet infected power plants.