NIST Releases SP 800-82 Revision 3 for OT Security Guidance

• •NIST published SP 800-82 Revision 3 on September 11, 2026.
• •The guide expands focus from ICS to all operational technology systems.
• •It includes updated threats, vulnerabilities, and tailored security controls.

On September 11, 2026, NIST published SP 800-82 Revision 3, a guide aimed at enhancing the security of operational technology (OT) systems. This revision expands the scope from industrial control systems (ICS) to a broader range of OT systems, addressing unique performance, reliability, and safety requirements. It identifies common threats and vulnerabilities associated with OT, and provides recommended security countermeasures. Key updates include tailored guidance for security controls, alignment with the Cybersecurity Framework, and a comprehensive overview of OT system topologies. The publication aims to assist organizations in managing risks associated with OT systems effectively.