this post was submitted on 31 Aug 2023
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Yeah I have worked places that quite literally were still using DOS 5.0/Win 3.1 computers even now because they 'just work' and the hardware they are connected to doesn't work with anything else, and they don't get a budget to replace anything. It's more common than you think.
It also makes a difference whether systems are connected to a public network. If it's not, then there is very little reason to worry about most vulnerabilities since most depend on network connectivity.
When I was job hunting prior to graduating from college in 1990 with a computer science degree I interviewed with the Electric Boat division of General Dynamics. They build the US Navy’s submarines. I’ll never forget being told how their systems were programmed via punch cards. Those cards were then sent off to a company that converted them into a magnetic tape that was then installed on the subs. I was shocked that anybody used punch cards in the 90’s, especially our military…