Isaca Updated CISM Exam Questions and Answers by dennis

= Disconnecting the device from the network is the first step when an IoT device in an organization’s network is confirmed to have been hacked, as it prevents the attacker from further compromising the device or using it as a pivot point to attack other devices or systems on the network. Disconnecting the device also helps preserve the evidence of the attack for later forensic analysis and remediation. Disconnecting the device should be done in accordance with the incident response plan and the escalation procedures123. References =

1: CISM Review Manual 15th Edition, page 2004

2: CISM Practice Quiz, question 1072

3: IoT Security: Incident Response, Forensics, and Investigations, section “IoT Incident Response”

= A supply chain attack is a type of cyberattack that targets the suppliers or service providers of an organization, rather than the organization itself. The attackers exploit the vulnerabilities or weaknesses in the supply chain to gain access to the organization’s network, systems, or data. The attackers may then use the compromised third-party resources to launch further attacks, steal sensitive information, disrupt operations, or damage reputation. Therefore, the most likely risk scenario that emerges from a supply chain attack is the compromise of critical assets via third-party resources. This scenario poses a high threat to the confidentiality, integrity, and availability of the organization’s assets, as well as its compliance and trustworthiness. Unavailability of services provided by a supplier, loss of customers due to unavailability of products, and unreliable delivery of hardware and software resources by a supplier are all possible consequences of a supply chain attack, but they are not the most likely risk scenarios. These scenarios may affect the organization’s productivity, profitability, and customer satisfaction, but they do not directly compromise the organization’s critical assets. Moreover, these scenarios may be caused by other factors besides a supply chain attack, such as natural disasters, human errors, or market fluctuations. References = CISM Review Manual 2023, page 189 1; CISM Practice Quiz 2

= According to the CISM Review Manual, availability is the degree to which information and systems are accessible to authorized users in a timely and reliable manner1. Availability ensures that services are delivered to the users as expected and agreed upon. Nonrepudiation is the ability to prove the occurrence of a claimed event or action and its originating entities1. It ensures that the parties involved in a transaction cannot deny their involvement. Authenticity is the quality or state of being genuine or original, rather than a reproduction or fabrication1. It ensures that the identity of a subject or resource is valid. Recovery time objective (RTO) is the maximum acceptable period of time that can elapse before the unavailability of a business function severely impacts the organization1. It is a metric used to measure the recovery capability of a system or service, not a factor that ensures timely and reliable access to services. References = CISM Review Manual, 16th Edition, Chapter 2, Information Risk Management, pages 66-67.

 The message that security supports and protects the business is the most effective in obtaining senior management’s commitment to information security management. This message emphasizes the value and benefits of security for the organization’s strategic goals, mission, and vision. It also aligns security with the business needs and expectations, and demonstrates how security can enable and facilitate the business processes and functions. The other messages are not as effective because they either overstate the role of security (A), focus on technical aspects rather than business outcomes (B), or confuse the nature and purpose of security ©. References = CISM Review Manual 2022, page 23; CISM Item Development Guide 2022, page 9; CISM Information Security Governance Certified Practice Exam - CherCherTech