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When "Prepare to Disconnect" Becomes Official Guidance: What CI Fortify Means for OT Security

medzscaler_threatlabzPublished 2026-08-11

Quick answer: CI Fortify is joint guidance published July 28, 2026 by CISA, the Australian Signals Directorate's ACSC, the FBI, the UK's NCSC, and the Canadian Centre for Cyber Security. It requires critical infrastructure operators to be able to isolate vital OT systems from all other networks during a cyber incident - and keep delivering essential services while disconnected. For most OT environ

Attributed threat actors

MITRE ATT&CK techniques

Original source: https://www.zscaler.com/blogs/product-insights/when-prepare-disconnect-becomes-official-guidance-what-ci-fortify-means-ot