OT Security Guidance: NIST Drafts Updated Guide, CISA/FBI Advise on ICS Integrators
NIST has published a draft update to its operational technology security guide, and CISA and the FBI have issued a fact sheet on the risks of working with third-party ICS integrators.
NIST this week released a draft of Special Publication 800-82 Revision 4, titled Guide to Operational Technology (OT) Security. Public comments are due by November 30, 2026. The document covers how to secure OT while accounting for the performance, reliability and safety demands specific to these systems.
The revision expands the guide’s sector coverage to include building automation, water and wastewater systems, food and agriculture, freight rail, maritime vessels, and the convergence of industrial IoT and cloud.
The guide is now organized around NIST Cybersecurity Framework 2.0, and the former risk management section has been reorganized to focus on the framework’s Govern function.
NIST also expanded its guidance on implementing OT security controls, including asset management and...
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