Old school tech is ridiculously easy to hack. New tech is much more hardened. The only advantage old tech has is that it doesn’t have peripherals that connect to the internet. At the end of the day the most secure computer is a new one, that isn’t on the internet, and is physically secure.
Only for people who know what they’re doing. If a hacker faces hardware they’ve never seen before it will take some time to read up on it, especially if datasheets and such is not available online.
I fully concede it’s security by obscurity, though. A technician possessing any experience with that hardware is probably going to make short work of its security measures.
