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> iso/iec_27019:2024

ISO/IEC 27019:2024

Information Security Controls for the Energy Utility Industry

SPEC // INSPECT: ISO/IEC 27019:2024REVIEWED: 2026-09-16
CATEGORY
JURISDICTIONINTERNATIONAL
MANDATORY LEVELCERTIFICATION_STANDARD
LIFECYCLE STATUSCURRENT
EXECUTIVE BRIEF SPECIFICATION PDFDISTRIBUTION LOCKED
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[AI // ARCHITECTURAL SUMMARY]

ISO/IEC 27019:2024 provides specialized information security guidance for process control systems used in the energy utility industry. It adapts ISO/IEC 27001 and 27002 controls explicitly to thermal, hydro, and renewable power plants, DCS, SCADA, PLCs, process historians, telecontrol interfaces, smart meters, and safety instrumented systems.

Scope & Applicability

Mandatory for electric utility operators, generation facilities (thermal, gas, hydro, nuclear, renewables), grid controllers, and OT engineering infrastructure.

Non-Coverage Boundaries

Does not replace functional safety requirements governed by IEC 61508/61511, but protects the digital networks controlling safety loops.

Key Clauses & Control Requirements

sec-energy-telecontrol

Telecontrol and Grid Communication Security

Authentication, integrity protection, and latency guarantees on IEC 60870-5-104 and IEC 61850 substation telemetry.

sec-energy-dcs-isolation

Process Control & DCS Segmentation

Strict boundary isolation between plant operations (DCS/PLC) and enterprise billing/ERP systems via IDMZ.

[AUDIT // VERIFIABLE EVIDENCE CHECKLIST]

Required Regulatory & Audit Evidence Artifacts

  • [✓]Energy Utility Specific Statement of Applicability (SoA)
  • [✓]Plant Network Topology Diagram showing Purdue model zones and conduits
  • [✓]Process Historian buffer-and-forward integrity verification records
  • [✓]Emergency Power Black-Start cybersecurity recovery procedures
[LEADERSHIP TAKEAWAY // CTO & VP OF ENGINEERING DIRECTIVE]
“ISO 27019 proves that in energy utilities, the primary security impact is physical safety and power generation continuity, not corporate data confidentiality. Never allow IT tools to reboot a DCS.”

Cross-Surface Ecosystem Relationships

Related Systems
Related Incidents
Guides & Dictionary Terms
PRIMARY SOURCES & AUTHORITY

Frequently Asked Questions

Why is ISO/IEC 27019:2024 critical for power plant operators?

Because standard IT security controls (like uncoordinated automated patching or vulnerability port-sweeps) can crash sensitive real-time DCS controllers and trip a 600 MW turbine.