Comment by pjmlp
6 hours ago
Many of those machines are running Java workloads, also COBOL isn't the only mainframe language, and the best thing in terms of security is that they don't use C as systems language, rather saner stuff with proper arrays, strings and bounds checking.
That is why Unisys ClearPath MCP is still a thing, tracing back to its Burroughs 1961 heritage, security above all.
Java workloads might be easier to port away from but aren’t MCP machines x86-based nowadays? Unisys did a ton of work for Microsoft making itself obsolete by adding a lot to their secret multiprocessor stuff to Windows.
It’s amazing how Microsoft convinced so many companies to shoot their feet.
They still use NEWP as systems language, there is no C stuff to exploit.