They are required to have anti-virus. I doubt this is the normal malware found cruising the internet.
“They are required to have anti-virus. I doubt this is the normal malware found cruising the internet.”
These should be on a separate network with no connection to the outside.
That rules out China, unless they sold some supplier bad microchips.
This points to an inside job, and it sould be easy to find out who had network access when the virus hit.