US, Australia Release OT Isolation Guidance for Critical Infrastructure
The US cybersecurity agency CISA and Australia’s Cyber Security Centre (ACSC) have published joint guidance detailing how critical infrastructure (CI) organizations can isolate vital OT and supporting systems.
Aimed at boosting cyber resilience, the CI Fortify – Advice for isolating vital systems guidance also includes details on how these systems can be operated in isolation for long periods, to ensure the continuity of critical services in case of disruption or crisis.
The document is designed to help OT owners, operators, and cybersecurity teams improve their preparedness, response, and recovery.
“In response to persistent threats, CI operators should have the capability to isolate vital OT and enabling systems from all other networks to ensure continuity of critical services. Isolating vital OT and enabling systems can disrupt the ability of malicious cyber actors to achieve their goal, contain active incidents, and allow for safe rebuilding of compromised systems,” the guidance reads.
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