OT DEFENSEREVIEW

Intelligence for systems that move the physical world.

Maintained record

Industrial defense change log

A chronological record of material rule, standards, company, product, operating, and research changes. Each entry preserves the source class, effective date, market consequence, and affected capability areas.

Transaction announcement · Official company announcement

Accenture announces agreements involving Dragos, runZero, and NetRise

Accenture announced agreements to acquire a majority stake in Dragos and all of runZero and NetRise.

Regulatory milestone · Official EU legal text

EU Cyber Resilience Act Chapter IV begins applying

The official regulation states that Chapter IV applies from June 11, 2026, ahead of later staged application dates.

Acquisition close · Official company announcement

ServiceNow completes the Armis acquisition

ServiceNow announced completion of its Armis acquisition.

Provider research · Official provider research release

Dragos releases its 2026 OT cybersecurity year in review

Dragos published its annual provider research across threats, vulnerabilities, ransomware, assessments, and incident-response observations.

Standards development · Official pre-draft notice

NIST begins the SP 800-82 Rev. 4 pre-draft process

NIST opened a pre-draft call for comments on the next revision of its OT security guide.

Standards publication · Official standards-body record

IEC publishes PAS 62443-1-6:2025

IEC published guidance for applying the 62443 series to IIoT architectures and roles.

Advisory batch · Official ICS advisory alert

CISA releases eleven ICS advisories

CISA published a batch of eleven ICS advisories covering several industrial product families.

Joint guidance · Official joint government guidance

CISA partners release OT asset inventory guidance

CISA and international partners released guidance connecting a maintained OT inventory and taxonomy to risk, architecture, vulnerability management, and response.

Final rule · Official commission action

FERC approves NERC CIP-015-1

Order No. 907 approved the proposed NERC internal network security monitoring standard and directed further modifications.

Defensive guidance · Official joint defensive fact sheet

CISA partners publish primary mitigations for OT

The agencies published high-priority defensive guidance in response to intentional targeting of internet-connected OT and ICS.

Standards publication · Official standards-body record

IEC publishes PAS 62443-2-2:2025

IEC published a specification for developing, validating, operating, and maintaining an IACS security protection scheme.

Joint guidance · Official joint government guidance

CISA partners publish Secure by Demand for OT buyers

The guide provides priority questions for selecting digital products used in operational technology.