Updated Mar-2026 ISA-IEC-62443 Free Exam Files Downloaded Instantly [Q72-Q88]

A National Standardization Body (NSB) represents a country’s interests in international standards organizations like ISO or IEC, and is responsible for adopting and promoting these standards at the national level.
“A National Standardization Body (NSB) participates in the development of international standards, represents national interests, and facilitates the adoption of international standards as national standards.”
– ISA/IEC 62443-1-1:2007 – Definitions and Governance Roles
In contrast:
A Global SDO (Standards Development Organization) works at the international level A Regulatory Agency enforces rules An Industry Consortium is a private collaboration, not a national entity References:
ISA/IEC 62443-1-1:2007 – Roles in Standardization
ISO/IEC Guide 21 – Adoption of International Standards

To demonstrate compliance with ISA/IEC 62443-2-1, the most effective evidence is formal documentation that shows the actual use, configuration, and operation of required cybersecurity policies and controls.
“The asset owner shall document procedures, configuration settings, and evidence of operational security controls to support compliance assessments and audits.”
– ISA/IEC 62443-2-1:2010, Clause 4.3.1 – Documented Security Program
Auditors require verifiable, written proof – not informal reports or promotional material.
References:
ISA/IEC 62443-2-1:2010 – Clause 4.3.1
ISA/IEC 62443-2-4 – Supporting audit evidence for service providers

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.

Phishing is a type of cyberattack that relies on a human weakness to succeed. Phishing is the practice of sending fraudulent emails or other messages that appear to come from a legitimate source, such as a bank, a government agency, or a trusted person, in order to trick the recipient into revealing sensitive information, such as passwords, credit card numbers, or personal details, or into clicking on malicious links or attachments that may install malware or ransomware on their devices. Phishing is a common and effective way of compromising the security of industrial automation and control systems (IACS), as it can bypass technical security measures by exploiting the human factor. Phishing can also be used to gain access to the IACS network, to conduct reconnaissance, to launch further attacks, or to cause damage or disruption to the IACS operations. The ISA/IEC 62443 series of standards recognize phishing as a potential threat vector for IACS and provide guidance and best practices on how to prevent, detect, and respond to phishing attacks. Some of the recommended countermeasures include:
* Educating and training the IACS staff on how to recognize and avoid phishing emails and messages, and how to report any suspicious or malicious activity.
* Implementing and enforcing policies and procedures for email and message security, such as using strong passwords, verifying the sender’s identity, and not opening or clicking on unknown or unsolicited links or attachments.
* Applying technical security controls, such as antivirus software, firewalls, spam filters, encryption, and authentication, to protect the IACS devices and network from phishing attacks.
* Monitoring and auditing the IACS network and devices for any signs of phishing attacks, such as
* anomalous or unauthorized traffic, connections, or activities, and taking appropriate actions to contain and mitigate the impact of any incidents. References:
* ISA/IEC 62443-1-1:2009, Security for industrial automation and control systems – Part 1-1:
Terminology, concepts and models1
* ISA/IEC 62443-2-1:2009, Security for industrial automation and control systems – Part 2-1: Establishing an industrial automation and control systems security program2
* ISA/IEC 62443-2-4:2015, Security for industrial automation and control systems – Part 2-4: Security program requirements for IACS service providers3
* ISA/IEC 62443-3-3:2013, Security for industrial automation and control systems – Part 3-3: System security requirements and security levels4
* ISA/IEC 62443-4-2:2019, Security for industrial automation and control systems – Part 4-2: Technical security requirements for IACS components5

ISA/IEC 62443 places strong emphasis on coordinated communication across the IACS ecosystem, particularly between asset owners, product suppliers, and service providers. Outreach is a core element of vulnerability management and continuous risk reduction.
Step 1: Asset owner accountability
According to ISA/IEC 62443-2-1, the asset owner is responsible for establishing and maintaining processes for identifying, reporting, and responding to cybersecurity vulnerabilities. This includes ensuring that clear reporting channels exist and are communicated to relevant parties.
Step 2: Vulnerability disclosure alignment
ISA/IEC 62443-4-1 requires product suppliers to support vulnerability handling and coordinated disclosure.
For this process to work effectively, asset owners must know how and where to report vulnerabilities discovered during operation.
Step 3: Why proactive communication matters
Waiting until a system failure contradicts the preventive intent of the standard. Cybersecurity is treated as a continuous process, not an incident-driven reaction.
Step 4: Elimination of incorrect options
* Limiting communication to integrators ignores suppliers and operators.
* Keeping patch policies confidential prevents coordinated risk management.
Therefore, the standard supports proactive outreach where asset owners are informed about how to report vulnerabilities, making Option B correct.

According to the ISA/IEC 62443 standards, the level of risk an organization is willing to tolerate is determined by the management, as they are responsible for defining the business and risk objectives, as well as the security policies and procedures for the organization. The management also has the authority to allocate the necessary resources and assign the roles and responsibilities for implementing and maintaining the security program. The legal, operations, and safety departments may provide input and feedback to the management, but they do not have the final say in determining the risk tolerance level. References: ISA/IEC
62443-2-1:2010 – Establishing an industrial automation and control systems security program, section 4.2.1.

CCSC stands for Common Component Security Criteria, as defined in ISA/IEC 62443-4-2. These are a standardized set of technical security requirements that apply across all component types (e.g., embedded devices, software apps, network components).
“CCSCs represent baseline technical security requirements that are commonly applicable to all IACS components, regardless of their type.”
– ISA/IEC 62443-4-2:2018, Clause 4.1 – Common Component Security Criteria These requirements support consistency and interoperability in component security evaluations.
References:
ISA/IEC 62443-4-2:2018 – Clause 4.1
ISA/IEC 62443-1-1 – Component types and terminology

In the ISA/IEC 62443 framework, Security Levels (SLs) are categorized into three distinct types:
Target SL (SL-T) – The security level required based on risk assessment Capability SL (SL-C) – The level a component or system can support Achieved SL (SL-A) – The level actually implemented in the system
“Three types of security levels are defined:
Target (SL-T): derived from risk analysis
Capability (SL-C): supported by the product or system
Achieved (SL-A): implemented and operational in the environment”
– ISA/IEC 62443-1-1:2007, Clause 3.2.4 and Table 3
This classification supports gap analysis and helps asset owners ensure their system meets both required and feasible security levels.
References:
ISA/IEC 62443-1-1:2007 – Clause 3.2.4
ISA/IEC 62443-3-2:2020 – SL classification and usage in risk analysis

SP Element 1 – Organizational Security Measures focuses on policies, roles, and governance at the organizational level. It includes:
Background checks
Security awareness training
Supply chain security governance
However, malware protection is not considered part of SP Element 1, as it falls under technical or system integrity controls, typically found in SP Element 4 (System Integrity).
“SP Element 1 includes activities such as assigning roles and responsibilities, background checks, training, and supply chain oversight – not technical malware defenses.”
– ISA/IEC 62443-2-1:2010, Clause 4.3.4 – Table 2 (SP Elements Overview) References:
ISA/IEC 62443-2-1 – Clause 4.3.4
SP Element 4 – Where malware protection is categorized

A Process Hazard Analysis (PHA) is a systematic and structured method of identifying and evaluating the potential hazards and risks associated with an industrial process. A PHA can help to identify the possible causes and consequences of undesired events, such as equipment failures, human errors, cyberattacks, natural disasters, etc. A PHA can also provide recommendations for reducing the likelihood and severity of such events, as well as improving the safety and security of the process. A PHA is one of the most frequently used analysis methods as an input to a security risk assessment, as it can help to identify the assets, threats, vulnerabilities, and impacts related to the process, and provide a basis for determining the security risk level and the appropriate security countermeasures. A PHA is also a requirement of the ISA/IEC 62443 standard, as part of the security program development and implementation phase12. References: 1: ISA/IEC 62443-2-1:
Security for industrial automation and control systems: Establishing an industrial automation and control systems security program 2: ISA/IEC 62443-3-2: Security for industrial automation and control systems:
Security risk assessment for system design

The abbreviation CSMS stands for Cyber Security Management System in ISA 62443-2-1. This standard defines the elements necessary to establish a CSMS for industrial automation and control systems (IACS) and provides guidance on how to develop those elements123. A CSMS is a collection of policies, procedures, practices, and personnel that are responsible for ensuring the security of IACS throughout their lifecycle24. References: 1: ISA/IEC 62443 Series of Standards – ISA 2: ISA 62443-2-1 – Security for industrial automation and control systems, Part 2-1: Establishing an Industrial Automation and Control Systems Security Program | GlobalSpec 3: IEC 62443-2-1:2010 | IEC Webstore | cyber security, smart city 4: Structuring the ISA/IEC 62443 Standards – ISAGCA

A vulnerability scanner is a tool that scans a network or a system for known vulnerabilities, such as misconfigurations, outdated software, or weak passwords. A vulnerability scanner can provide valuable information for improving the security posture of a system, but it can also cause serious disruption of a control network if used on a live system. This is because a vulnerability scanner may generate a large amount of network traffic, consume system resources, trigger alarms, or even crash devices by exploiting vulnerabilities.
Therefore, a vulnerability scanner should not be used on a live system without proper authorization and precautions. A vulnerability scanner should only be used on a test or isolated network, or during a scheduled maintenance window with minimal impact on the system operation. References: ISA/IEC 62443 Standards to Secure Your Industrial Control System, Module 5: Assessing the Current Security Level, Slide 25.

ISA/IEC 62443-2-1 defines SP Element 4 as covering component hardening, malware protection, and the secure use of portable and mobile media. Malware introduced through USB devices is a well-known attack vector in IACS environments, and the standard addresses this risk explicitly through preventive controls rather than only reactive measures.
Step 1: Nature of the threat
Portable media such as USB drives bypass network-based defenses and can introduce malware directly into critical control systems. ISA/IEC 62443 recognizes this as a high-risk vector, especially in air-gapped or semi- isolated systems.
Step 2: SP Element 4 scope
SP Element 4 requires asset owners to implement technical controls such as:
* Restrictions on the use of portable media
* Use of dedicated, controlled media
* Malware scanning before use
* Hardening of endpoints to prevent unauthorized execution
Step 3: Why other SP Elements are secondary
* SP Element 1 focuses on anomaly detection, not prevention.
* SP Element 2 concerns inventory accuracy.
* SP Element 7 applies after an incident has occurred.
Step 4: Preventive emphasis
The standard prioritizes prevention of malware introduction through controlled media usage, making SP Element 4 the most relevant.

Decreased energy consumption is not a consequence of poor control system security. In fact, security breaches often lead to increased (not decreased) energy consumption due to inefficiencies, system downtime, or damage. Real consequences of failing to prioritize control system security include personal injury (due to process hazards), unauthorized data access, theft or misuse, and violation of regulations (with possible legal penalties).
Reference: ISA/IEC 62443-1-1:2007, Section 4.4; ISA/IEC 62443-2-1:2009, Section 4.2.2 (Potential Consequences Table).

Packet filter, application proxy, and stateful inspection are all recognized types or classes of firewalls in both IT and industrial control environments. A network monitor, on the other hand, is not considered a firewall but rather a tool for observing and analyzing network traffic. It does not provide firewall-like controls for blocking or allowing traffic.
Reference: ISA/IEC 62443-3-3:2013, Section 4.2.3.3 (“Types of firewalls”); ISA/IEC 62443-1-1:2007, Section 3.2.6.