It's using NERC CIP terminology. Business networks are to be isolated from process networks. So the email/porn computers and printers etc can't be on the same network as the Industrial process control equipment, etc. Firewalls or islanding to be used and so on.
Deflect from China. Delay the report. Create fear. I almost this the hoax NASA warning about solar storm and complete darkness from 16th to 23rd was the GO signal for this.