ISA/IEC 62443 Cybersecurity Fundamentals Specialist — Question 61

Which analysis method is MOST frequently used as an input to a security risk assessment?

Answer options

• A. Failure Mode and Effects Analysis (FMEA)
• B. Job Safety Analysis (JSA)
• C. Process Hazard Analysis (PHA)
• D. System Safety Analysis (SSA)

Correct answer: C

Explanation

Process Hazard Analysis (PHA) is widely regarded as the primary method for identifying and evaluating risks in security assessments due to its systematic approach to analyzing potential hazards. In contrast, Failure Mode and Effects Analysis (FMEA), Job Safety Analysis (JSA), and System Safety Analysis (SSA) are valuable but not as frequently applied specifically in security risk contexts.