🔥 In-Demand Certification · 2025

Global Industrial Cyber Security Professional (GICSP)

Bridge IT, engineering, and cybersecurity to secure industrial control systems throughout their entire lifecycle. GICSP is a vendor-neutral, practitioner-focused certification that validates expertise across ICS components, attack surfaces, network defence architectures, incident response, and governance — essential for any OT/ICS security professional.

ICS/OT Security Control Systems Network Defence Incident Response Industrial Protocols Governance & Policy Vendor Neutral

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ICS Components & ArchitecturePurdue Reference Architecture levels 0–3 and secure design

Protocols & CommunicationsTCP/IP, ICS-specific protocols, and cryptography

Defence & Incident ResponseNetwork defence architecture and risk-based IR planning

Governance & PolicyICS security programs, policies, and industry frameworks

Exam Questions

3 hrs

Duration

71%

Passing Score

GIAC

Certified

Why It's Essential

OT & ICS Security Is the Fastest-Growing Specialisation

Critical infrastructure attacks are at an all-time high. Organisations urgently need professionals who can secure industrial environments where IT and OT converge — and GICSP is the gold-standard credential that proves you can.

Trending

900+

ICS/OT Attacks on Critical Infrastructure in 2024

Power grids, water treatment, oil & gas, and manufacturing are primary targets — validated ICS security expertise has never been more in demand.

Unique

Bridge Between IT and Engineering Worlds

GICSP is the only major certification that spans both IT security and operational technology engineering — making certified professionals rare and highly valued.

Trending

Global

Recognition Across All Critical Infrastructure Sectors

GICSP is recognised by government agencies, utilities, energy companies, and defence contractors worldwide as the benchmark ICS security credential.

+30%

Salary Premium for ICS/OT Security Specialists

The critical shortage of ICS-qualified security professionals drives significantly higher compensation compared to general IT security roles.

Course Content

Complete GICSP Curriculum

Click any module to expand and explore the topics covered in detail.

ICS Overview, Concepts & Programme Development

5 Topics

Summarise the function of high-level ICS processes and ICS roles and responsibilities

Compare and contrast key differences between ICS and IT, including physical security considerations

Build a security programme and create enforceable security policies for an ICS environment

Understand regulatory frameworks, industry standards, and governance models for ICS security

Identify significant drivers, constraints, and deployment patterns in industrial control environments

ICS Components & Architecture

5 Topics

Categorise assets that comprise Purdue Reference Architecture levels 0 through 3

Describe how assets can be implemented in a securable ICS architecture

Summarise the use of levels and zones in defining a secure ICS architecture

Identify devices deployed at each level and zone of the reference architecture

Understand segmentation strategies and DMZ design for ICS network protection

Protocols, Communications & Compromises

5 Topics

Describe basic structures, protocols, and defence of communications within an ICS

Understand TCP/IP fundamentals and ICS-specific protocols such as Modbus, DNP3, and EtherNet/IP

Summarise how ICS communications can be compromised and defended

Describe the cryptography used to protect ICS communications

Analyse wireless technologies used in ICS environments and their attack vectors

Endpoint Hardening, Threat Modelling & Incident Response

5 Topics

Implement endpoint security software along with hardening and patching for Windows and Unix systems in ICS

Describe level 0–3 devices and technologies and how they are targeted and attacked

Determine the threat landscape of an ICS and apply high-level threat modelling concepts

Describe how risk is measured and how it informs disaster recovery and incident response planning

Conduct risk-based incident response appropriate to industrial control system environments

FAQs

Frequently Asked Questions

What is the GIAC Global Industrial Cyber Security Professional (GICSP) certification?

GICSP is a vendor-neutral, practitioner-focused certification that bridges IT, engineering, and cybersecurity to achieve security throughout the industrial control systems (ICS) lifecycle. It validates a diverse set of competencies for professionals who engineer or support control systems and share responsibility for their security.

What are the GICSP exam requirements?

The GICSP exam consists of 82 questions, is web-based and proctored, has a 3-hour time limit, and requires a minimum passing score of 71%. Proctoring is available via ProctorU (remote) or PearsonVUE (onsite).

What topics does GICSP cover?

GICSP covers ICS components and architecture, control system attack surfaces and tools, network defence architectures and techniques, incident response in control system environments, governance models, protocols and communications, endpoint hardening, threat modelling, and wireless technologies.

Who should take the GICSP certification?

GICSP is designed for ICS IT practitioners, ICS security analysts, security engineers, industry managers and professionals, and vendors who work with or support industrial control system environments.

Is GICSP relevant to critical infrastructure security?

Yes — GICSP is one of the most recognised ICS security credentials globally and is valued by organisations in energy, utilities, water, oil and gas, manufacturing, and defence sectors. It is widely referenced in government and regulatory frameworks for critical infrastructure protection.

How does GICSP differ from standard IT security certifications?

GICSP uniquely bridges IT security and operational technology (OT) engineering. Unlike IT-focused certifications, GICSP addresses the specific constraints, protocols, and risk models of industrial environments, including legacy systems, safety-critical operations, and the Purdue Reference Architecture.

Become a Certified ICS Security Professional

Join Zetlan Technologies' GICSP programme and gain the industrial cybersecurity expertise needed to protect critical infrastructure. Earn your GIAC certification and advance your career in the rapidly growing OT security field.

Global Industrial Cyber Security Professional (GICSP)

OT & ICS Security Is the Fastest-Growing Specialisation

GICSP Exam Details

Complete GICSP Curriculum

Built for ICS and OT Security Professionals

Frequently Asked Questions

Become a Certified ICS Security Professional