[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fR4jh28ou05fBJ0qV_ENQlrjYTpx2ZizQImB9n49Vq3M":3},{"lesson":4},{"id":5,"slug":6,"article_id":7,"title":8,"body":9,"prevention":10,"framework_refs":11,"status":22,"created_at":23,"published_at":24,"article":25,"tags":29,"podcasts":42},"adff8281-04d0-4e1f-8b55-6ef41e4384b0","cisa-urges-critical-infrastructure-to-plan-for-ot-isolation-during-cyberattacks","cdfbe0b2-4c4c-4a2c-86ae-07972fb6c78c","CISA Urges Critical Infrastructure to Plan for OT Isolation During Cyberattacks","Nation-state actors and cybercriminals are increasingly targeting critical infrastructure OT systems, which are often insufficiently isolated from less trusted IT networks, creating pathways for devastating disruptions. The CI Fortify guidance highlights that many organizations lack pre-planned procedures to manually operate essential services when forced to disconnect from interconnected networks. Without documented system connections and rehearsed isolation procedures, an organization scrambling to respond mid-attack risks both operational failure and extended downtime. This matters because attacks on critical infrastructure—power grids, water systems, transportation—can have life-safety consequences far beyond typical data breaches.","**Immediate Actions:**\n- Conduct a thorough inventory of all OT\u002FIT interconnections and document which systems are essential to core operations.\n- Develop and distribute written manual operating procedures for critical processes that can function without network connectivity.\n\n**Long-term Improvements:**\n- Implement robust network segmentation between OT environments and corporate\u002FIT networks using firewalls, data diodes, or air gaps where appropriate.\n- Establish and regularly test a formal OT incident response plan that includes predefined isolation triggers, roles, and communication protocols.\n- Run tabletop exercises and live drills simulating network disconnection scenarios to validate that staff can maintain services manually.\n\n**Detection & Monitoring Measures:**\n- Deploy continuous monitoring tools on OT network boundaries to detect anomalous lateral movement or unauthorized cross-network communications early.\n- Establish baseline behavior profiles for OT systems so that deviations triggering isolation decisions can be made with confidence and speed.",[12,13,14,15,16,17,18,19,20,21],"NIST SP 800-82 Rev. 3 (Guide to OT Security)","NIST CSF 2.0 – PR.IR (Infrastructure Resilience)","NIST CSF 2.0 – RS.AN (Incident Analysis)","CIS Control 12 – Network Infrastructure Management","CIS Control 13 – Network Monitoring and Defense","CIS Control 17 – Incident Response Management","ICS-CERT NERC CIP-007 (Systems Security Management)","NIST SP 800-34 Rev. 1 (Contingency Planning Guide)","ISA\u002FIEC 62443-3-3 – OT Network Segmentation Requirements","ITIL 4 – Service Continuity Management","published","2026-07-28T20:20:52.177878+00:00","2026-07-28T20:20:52.084+00:00",{"id":7,"url":26,"slug":27,"title":28},"https:\u002F\u002Fwww.bleepingcomputer.com\u002Fnews\u002Fsecurity\u002Fcisa-shares-advice-on-isolating-vital-systems-during-cyberattacks\u002F","cisa-shares-advice-on-isolating-vital-systems-during-cyberattacks-cca801","CISA shares advice on isolating vital systems during cyberattacks",[30,36],{"id":31,"name":32,"slug":33,"description":34,"color":35},"182e11d5-57c4-444e-8ec8-4682ad60261b","Incident Response","incident-response","Slow detection, poor containment, missing playbooks","#14b8a6",{"id":37,"name":38,"slug":39,"description":40,"color":41},"f43a7f30-5046-4b10-9dba-1a704139821e","Network Segmentation","network-segmentation","Lateral movement, flat networks, missing firewalls","#06b6d4",[]]