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| Section | Objectives |
|---|---|
| Policies, Procedures, and Governance | - Compliance and governance considerations - Security policies for industrial control systems |
| Risk and Security Management | - Risk assessment principles - Security lifecycle management in industrial systems |
| Introduction to Industrial Cybersecurity | - Overview of IT vs OT security concepts - Fundamentals of cybersecurity in industrial environments |
| ISA/IEC 62443 Framework Overview | - Key terminology and concepts (zones, conduits, security levels) - Structure and purpose of IEC 62443 standards |
| Industrial Network and System Security | - Network segmentation and architecture security - Asset identification and protection |
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NEW QUESTION # 83
Which service does an Intrusion Detection System (IDS) provide?
Answer: D
Explanation:
An Intrusion Detection System (IDS) is a passive monitoring tool that detects unauthorized or malicious activity in networked systems. It does not block traffic (like an IPS), but rather alerts administrators to potential breaches.
"An IDS monitors network or system activities for malicious actions or policy violations and produces alerts or logs for analysis."
- ISA/IEC 62443-3-3:2013, SR 3.2 - Detection of Security Events
It's a core component of security monitoring and response - often paired with an Incident Response Plan (IRP) as defined in ISA/IEC 62443-2-1.
Clarification of Options:
Option A is metaphorical and not technically accurate.
Option B is false; IDS does not protect against all vulnerabilities.
Option C is incorrect; IDS does not block, only detects.
Option D is correct - it detects unauthorized access or misuse.
References:
ISA/IEC 62443-3-3:2013 - SR 3.2
ISA/IEC 62443-2-1:2010 - SP Element 7: Incident Response
NIST SP 800-94 - Guide to Intrusion Detection Systems
NEW QUESTION # 84
What is one reason why IACS systems are highly vulnerable to attack?
Answer: D
Explanation:
ISA/IEC 62443 highlights that many IACS environments operate with long lifecycles and strict availability requirements, which often results in delayed or infrequent patching.
Step 1: Legacy systems and uptime constraints
IACS components may run for decades without replacement. Applying patches can introduce operational and safety risks, so updates are often postponed.
Step 2: Accumulated vulnerabilities
Unpatched systems accumulate known vulnerabilities that attackers can exploit using publicly available tools.
Step 3: Why other options are incorrect
IACS systems are no longer isolated. They do require patches, and they rarely run the latest updates.
Therefore, unpatched software is a major vulnerability factor.
NEW QUESTION # 85
Electronic security, as defined in ANSI/ISA-99.00.01:2007. includes which of the following?
Available Choices (select all choices that are correct)
Answer: D
NEW QUESTION # 86
Which of the following PRIMARILY determines access privileges for user accounts?
Available Choices (select all choices that are correct)
Answer: B
Explanation:
Authorization security policy is the primary factor that determines access privileges for user accounts. Authorization security policy is the function of specifying access rights or privileges to resources, which is related to general information security and computer security, and to access control in particular1.
Authorization security policy defines who can access what resources, under what conditions, and for what purposes. Authorization security policy should be aligned with the business objectives and security requirements of the organization, and should be enforced by appropriate mechanisms and controls. Authorization security policy should also be reviewed and updated regularly to reflect changes in the environment, threats, and risks2. Authorization security policy is an essential part of the ISA/IEC 62443 standard, which provides a framework for securing industrial automation and control systems (IACS). The standard defines four security levels (SL) that represent the degree of protection against threats, and specifies the security capabilities that should be implemented for each SL. The standard also provides guidance on how to conduct a security risk assessment, how to define security zones and conduits, and how to apply security policies and procedures to the IACS environment34 . References: https://bing.com/search?
q=authorization+security+policy
https://learn.microsoft.com/en-us/aspnet/core/security/authorization/policies?view=aspnetcore-7.0
NEW QUESTION # 87
Which of the following attacks relies on a human weakness to succeed?
Available Choices (select all choices that are correct)
Answer: A
Explanation:
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
NEW QUESTION # 88
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