Wire · operational-macro
NIST SP 800-82r4 draft expands OT security guidance with zero trust, CSF 2.0 ...
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Fusion42 · 22 September 2026 · Fusion42 review
NIST published a draft update to SP 800-82r4 that expands guidance on securing operational technology (OT) systems with zero trust principles, Cybersecurity Framework 2.0 alignment, and consequence-driven risk management. The draft broadens coverage to include building automation, water systems, agriculture, freight rail, maritime vessels, and Industrial IoT, emphasizing integration of engineering countermeasures and updated risk management frameworks.
This Wire brief sits within Fusion42's coverage of Cybersecurity.
◆ ◆ The Wire takeaway
The new NIST OT security draft resets the compliance bar and opens US infrastructure sectors to zero trust and integrated cyber-physical risk controls. You need to align your OT security strategy now to avoid falling behind on regulation and to access government and critical infrastructure contracts.
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1 source · 22 Sep 2026
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