First published: 28 Jul 2026
Last updated: 28 Jul 2026

Content written for

Large organisations & infrastructure
Government

Together with international partners, we have released CI Fortify- Advice for isolating systems to help organisations and Critical Infrastructure (CI) operators isolate vital Operational Technology (OT) systems and maintain essential services during periods of crisis or service disruption.

State-sponsored actors and cybercriminals routinely target Australian CI to conduct espionage and pre-position for disruptive and destructive cyber effects. Ongoing geopolitical instability and emerging technologies, including advanced AI, are increasing the capability and intent of malicious actors. Preparing for these threats is essential.

This publication outlines steps CI operators and cyber teams can take to isolate their vital OT and enabling systems from all other networks. Following these steps supports operators in maintaining their critical service in periods of crisis or service disruption.

Explore the guide:

By understanding and applying this guidance, organisations can strengthen their cyber resilience and ensure continuity of critical services when it matters most.

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