CISA Advises Critical Infrastructure to Isolate Operational Technology Systems Amid State‑Sponsored Threats
What Happened — The U.S. Cybersecurity and Infrastructure Security Agency (CISA), together with the Australian Signals Directorate, the FBI and other Five‑Eyes partners, released the “CI Fortify – Advice for isolating vital systems” guidance. It urges operators of critical infrastructure to be able to disconnect operational technology (OT) networks from corporate and Internet‑facing environments while still delivering essential services.
Why It Matters for Compliance & Audit Readiness
- The guidance maps directly to SOC 2 CC6 (System Operations) and CC7 (Change Management) controls that require documented procedures for isolating and protecting critical systems.
- Continuous evidence of isolation‑readiness (e.g., network segmentation diagrams, test‑run logs) can serve as audit‑ready artifacts, demonstrating due diligence to regulators and customers.
- Leveraging Verisq’s Control Mapping capability lets you align this new OT isolation requirement with existing control libraries and automatically collect proof for the Trust Center.
Who Is Affected – Water and wastewater utilities, electric grids, manufacturing plants, transportation operators, and telecommunications providers (critical infrastructure sectors).
Recommended Actions
- Map the CISA OT‑isolation recommendations to your SOC 2 control set (CC6, CC7, CC9).
- Document and test isolation playbooks; capture logs and configuration snapshots as continuous compliance evidence.
- Integrate the playbooks into your change‑management workflow and feed the artifacts into Verisq’s Trust Center for audit‑ready reporting.
Technical Notes – The advisory highlights that state‑sponsored actors (e.g., Volt Typhoon/Salt Typhoon) have leveraged vulnerable edge networking devices and trusted connections to pivot into OT environments. No specific CVE is cited, but the emphasis is on network segmentation, air‑gapped design, and trusted‑path controls. Source: BleepingComputer