CISA Releases Guidance to Enhance OT Security Amid Cost and Complexity Barriers

On February 12, 2026, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued new guidance addressing the persistent barriers to secure operational technology (OT) communication in critical infrastructure sectors such as water, transportation, and energy. The report identifies cost, complexity, and legacy design as significant challenges hindering the adoption of secure industrial protocols, and it offers practical recommendations for asset owners and operators.