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| Section | Objectives |
|---|---|
| Risk and Security Management | - Risk assessment principles - Security lifecycle management in industrial systems |
| Industrial Network and System Security | - Network segmentation and architecture security - Asset identification and protection |
| ISA/IEC 62443 Framework Overview | - Structure and purpose of IEC 62443 standards - Key terminology and concepts (zones, conduits, security levels) |
| Introduction to Industrial Cybersecurity | - Fundamentals of cybersecurity in industrial environments - Overview of IT vs OT security concepts |
| Policies, Procedures, and Governance | - Compliance and governance considerations - Security policies for industrial control systems |
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NEW QUESTION # 187
Which of the following is a cause for the increase in attacks on IACS?
Available Choices (select all choices that are correct)
Answer: A,C
Explanation:
One of the reasons for the increase in attacks on IACS is the availability of information and tools that can be used to exploit vulnerabilities in these systems. The Internet provides a platform for hackers, researchers, and activists to share their knowledge and techniques for compromising IACS. Some examples of such information and tools are:
* Stuxnet: A sophisticated malware that targeted the Iranian nuclear program in 2010. It exploited four zero-day vulnerabilities in Windows and Siemens software to infect and manipulate the programmable logic controllers (PLCs) that controlled the centrifuges. Stuxnet was widely analyzed and reported by the media and security experts, and its source code was leaked online1.
* Metasploit: A popular penetration testing framework that contains modules for exploiting various IACS components and protocols. For instance, Metasploit includes modules for attacking Modbus, DNP3, OPC, and Siemens S7 devices2.
* Shodan: A search engine that allows users to find devices connected to the Internet, such as webcams, routers, printers, and IACS components. Shodan can reveal the location, model, firmware, and configuration of these devices, which can be used by attackers to identify potential targets and vulnerabilities3.
* ICS-CERT: A website that provides alerts, advisories, and reports on IACS security issues and incidents. ICS-CERT also publishes vulnerability notes and mitigation recommendations for various IACS products and vendors4. These sources of information and tools can be useful for legitimate purposes, such as security testing, research, and education, but they can also be misused by malicious actors who want to disrupt, damage, or steal from IACS. Therefore, IACS owners and operators should be aware of the threats and risks posed by the Internet and implement appropriate security measures to protect their systems. References:
* The increase in attacks on Industrial Automation and Control Systems (IACS) can be attributed to several factors, including: A. Use of proprietary communications protocols: These can pose security risks because they may not have been designed with security in mind and are often not as well-tested against security threats as more standard protocols. C. Knowledge of exploits and tools readily available on the Internet: The availability of information about vulnerabilities and exploits on the internet has made it easier for attackers to target IACS.
* The other options, B and D, are incorrect because: B. The move towards commercial off-the-shelf (COTS) systems, protocols, and networks actually increases risk because these systems are more likely to be known and targeted by attackers, compared to proprietary systems which might benefit from security through obscurity. D. There is actually an increase in risk with more personnel with system knowledge because it enlarges the attack surface - each individual with system knowledge can potentially become a vector for an attack, either maliciously or accidentally.
NEW QUESTION # 188
The Risk Analysis category contains background information that is used where?
Available Choices (select all choices that are correct)
Answer: D
NEW QUESTION # 189
What is the primary focus of Part 3-2 in the ISA/IEC 62443 series?
Answer: C
Explanation:
ISA/IEC 62443-3-2 focuses on the cybersecurity risk assessment process, including:
Identifying zones and conduits
Determining the Target Security Levels (SL-T)
Designing the IACS architecture based on risk-based zoning
"Part 3-2 defines a process for conducting cybersecurity risk assessments and designing system architectures that incorporate zones and conduits based on those risks."
- ISA/IEC 62443-3-2:2020, Clause 5 - Risk Assessment Process
This part bridges the gap between risk evaluation and technical implementation.
References:
ISA/IEC 62443-3-2:2020 - Clauses 5.2 to 5.5
ISA/IEC 62443-1-1 - Framework overview
NEW QUESTION # 190
What is OPC?
Available Choices (select all choices that are correct)
Answer: D
NEW QUESTION # 191
Which of the following is an industry sector-specific standard?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
API 1164 is an industry sector-specific standard that provides guidance on the cybersecurity of pipeline supervisory control and data acquisition (SCADA) systems. API stands for American Petroleum Institute, which is the largest U.S. trade association for the oil and natural gas industry. API 1164 was first published in
2004 and revised in 2009 and 2021. The latest version of the standard aligns with the ISA/IEC 62443 series of standards and incorporates the concepts of security levels, zones, and conduits. API 1164 covers the security lifecycle of pipeline SCADA systems, from risk assessment and policy development to implementation and maintenance. The standard also defines roles and responsibilities, security requirements, security controls, and security assessment methods for pipeline SCADA systems.
References:
API 1164: Pipeline SCADA Security, Fourth Edition, September 2021
ISA/IEC 62443 Cybersecurity Fundamentals Specialist Study Guide, Section 2.2.2, Industry Sector-Specific Standards ISA/IEC 62443 Cybersecurity Fundamentals Specialist Exam Specification, Section 2.2.2, Industry Sector- Specific Standards
NEW QUESTION # 192
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