What the Course Entails and Exam Details

The IC33 course and exam dive deep into the practical application of the ISA/IEC 62443 standards, with a heavy emphasis on risk assessment methodologies.

The core focus is on standard ISA/IEC 62443-3-2: Security risk assessment for system design, which outlines the requirements for defining a system under consideration (SUC), partitioning it into zones and conduits, and performing high-level and detailed risk assessments.

Students learn to define security levels (SL) and understand how to use these levels to evaluate if an IACS meets target security requirements.

The curriculum also touches on elements of ISA/IEC 62443-2-1: Establishing an IACS security program, specifically how risk assessment integrates into the broader security management system.

Key skills covered include determining the System Under Consideration (SUC), performing high-level risk assessments to identify worst-case scenarios, conducting detailed risk assessments using methodologies like fault tree analysis or hazop, and recommending specific security counter-measures based on assessment findings.

What to Expect in the Final Exam

The final IC33 exam is a rigorous test of both theoretical knowledge and practical application scenario based.

It is typically delivered in a closed-book, proctored environment, ensuring the integrity of the certification.

The format consists entirely of multiple-choice questions, which often present complex, real-world scenarios requiring candidates to choose the best course of action based on the standards.

Candidates usually have a strict time limit, often around 2.5 to 3 hours, to answer approximately 75 to 100 questions.

A passing score is generally set around 70%, though this can vary slightly by exam version.

Candidates should expect questions that test their ability to correctly interpret the standards, apply the specific steps of the risk assessment process, and identify the correct artifacts required for compliance in various industrial contexts.

How to Study and Exam Centers

Effective preparation for the IC33 exam requires a combination of structured learning and dedicated self-study.

Official Training: The International Society of Automation (ISA) offers the official IC33 course, which is highly recommended as it directly covers the material the exam is based on and includes valuable practical exercises.

Standard Review: The most critical study strategy is a deep, thorough reading of the actual ISA/IEC 62443-3-2 and relevant sections of 62443-2-1 standards. Understand the definitions, steps, and required outcomes stated within them.

Practice Exams: Utilizing practice tests is essential to familiarize yourself with the phrasing of questions and manage your time effectively during the actual exam. These tests help identify areas where your understanding is weak.

Exam Centers and Delivery: The IC33 exam is typically administered globally through approved testing centers, such as those operated by Prometric.

Candidates can schedule their exams at physical testing centers or, in many cases, opt for online proctored exams delivered via a secure portal, allowing them to take the test from their home or office.

Job Opportunities from the Course

Upon achieving the ISA/IEC 62443 Risk Assessment Specialist certification, individuals are well-positioned for several high-demand roles within critical infrastructure sectors. This credential validates expertise that is highly sought after by employers looking to protect their industrial assets.

Job titles this certification unlocks include:

• ICS/OT Cybersecurity Risk Assessor

• Industrial Cybersecurity Consultant

• OT Security Engineer

• IACS Cybersecurity Specialist

• Vulnerability Management Analyst (ICS focused)

• Security Architect for Industrial Control Systems

• Compliance Manager (focus on NERC CIP or IEC 62443 compliance)

• Asset Owner/Operator Cybersecurity Lead