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Exam ISA-IEC-62443 Topic 1 Question 152 Discussion

Actual exam question for ISA's ISA-IEC-62443 exam
Question #: 152
Topic #: 1
Under User Access Control (SP Element 6), which of the following is included in USER 1 - Identification and Authentication?

Suggested Answer: B Vote an answer

SP Element 6 in ISA/IEC 62443-2-1 addresses User Access Control, ensuring that only authorized users can access IACS resources.
Step 1: Definition of USER 1
USER 1 corresponds to Identification and Authentication Control (IAC), the first foundational requirement. It focuses on verifying the identity of users before granting access.
Step 2: Password protection
Password mechanisms are a fundamental form of user authentication and are explicitly included under identification and authentication requirements.
Step 3: Why other options are incorrect
Mutual authentication applies to system-to-system authentication. Backup restoration and incident handling belong to different SP Elements.
Step 4: Security intent
By enforcing password protection, the asset owner ensures accountability, traceability, and prevention of unauthorized access.
Therefore, the correct answer is Password protection.

by Lydia at Oct 01, 2026, 04:35 AM

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