ISA ISA-IEC-62443 Exam With Confidence Using Practice Dumps

ISA/IEC 62443-2-1 defines SP Element 1 – Organizational Security Measures as the set of governance, policy, and people-focused controls that establish the foundation of an IACS Security Program. These measures are organizational in nature and are intended to create accountability, awareness, and structured risk management.

Step 1: Scope of SP Element 1

SP Element 1 includes activities such as:

Security policy definition

Roles and responsibilities

Personnel security (e.g., background checks)

Security awareness and training

Supply chain security governance

These controls ensure that people, processes, and third-party relationships support cybersecurity objectives.

Step 2: Why malware protection does not belong here

Malware protection is a technical control, not an organizational measure. In ISA/IEC 62443, malware protection is addressed under SP Element 4 – Component Hardening, which focuses on endpoint protection, anti-malware mechanisms, and secure configurations.

Step 3: Why the other options are valid

Background checks are explicitly part of personnel security.

Supply chain security is a key organizational concern.

Security awareness training ensures staff understand their responsibilities.

Therefore, Malware protection is not listed under SP Element 1.

In ISA/IEC 62443, Target Security Protection Ratings correspond to the concept of Target Security Levels (SL-T).

Step 1: Definition of target ratings

Target ratings describe the desired level of protection that a system or zone must achieve during operation, based on risk assessment.

Step 2: Difference between target and achieved

Target ratings define what is required.

Achieved ratings (SL-A) describe what has actually been implemented and verified.

Step 3: Why Option D is correct

The target rating outlines the intended security outcome that implementation measures must fulfill during operation, not what currently exists.

Step 4: Why other options are incorrect

Actual achieved levels, cost metrics, or implementation measurements are separate concepts.

Therefore, the correct description is that they outline the desired levels of system security requirements to be fulfilled during operation.

ISA/IEC 62443 defines Security Levels (SL 0–4) as qualitative representations of the system’s ability to withstand different attacker capabilities. These definitions are consistent across system (3-3) and component (4-2) requirements.

Step 1: Understanding attacker models

SL 1 addresses casual or accidental misuse.

SL 2 addresses intentional violations using simple means and low skill.

SL 3 addresses intentional violations using sophisticated means with moderate skills.

SL 4 addresses highly sophisticated attackers with extended resources.

Step 2: Match requirement to definition

The question explicitly describes:

Intentional violations

Sophisticated means

Moderate skill level

This description directly aligns with the formal definition of SL 3.

Step 3: Why other SLs do not fit

SL 1 and SL 2 do not account for sophisticated attack techniques.

SL 4 assumes nation-state–level capability and extensive resources, which exceeds the stated threat.

Step 4: Risk-based targeting

ISA/IEC 62443-3-2 requires asset owners to select a Target Security Level (SL-T) based on risk assessment. When threats involve deliberate, technically capable attackers but not extreme resources, SL 3 is the appropriate target.

Therefore, the correct and standards-aligned answer is SL 3.