Australia: Signals Directorate published Critifical Infrastructure Fortify guidance for operators

On 13 October 2025, the Australian Signals Directorate (ASD) released "Critical Infrastructure (CI) Fortify," a guidance document for CI operators. It applies to large organisations and government entities managing operational technology (OT) and essential services. The guidance urges operators to maintain updated OT inventories, identify vital systems, isolate them from external networks for up to three months, and rebuild them quickly using trusted backups. It responds to rising state-sponsored and criminal cyber threats, aiming to strengthen resilience and reduce service disruptions.