Isaca Updated CISM Exam Questions and Answers by arisha

An organization ' s information security strategy should be aligned with its risk tolerance, which is the level of risk that an organization is willing to accept in pursuit of its objectives. The strategy should aim to balance the cost of security controls with the potential impact of security incidents on the organization ' s objectives. Therefore, an organization ' s risk tolerance has the greatest influence on its information security strategy.

The organization’s risk tolerance has the greatest influence on its information security strategy because it determines how much risk the organization is willing to accept and how much resources it will allocate to mitigate or transfer risk. The organizational structure, industry security standards, and information security awareness are important factors that affect the implementation and effectiveness of an information security strategy but not as much as the organization’s risk tolerance.

An information security strategy is a high-level plan that defines how an organization will achieve its information security objectives and address its information security risks. An information security strategy should align with the organization’s business strategy and reflect its mission, vision, values, and culture. An information security strategy should also consider the external and internal factors that influence the organization’s information security environment such as laws, regulations, competitors, customers, suppliers, partners, stakeholders, employees etc.

Review of security metrics trends is the best evidence to senior management that security control performance has improved because it helps to measure and demonstrate the effectiveness and efficiency of the security controls over time. Security metrics are quantitative or qualitative indicators that provide information about the security status or performance of an organization, system, process, or activity. Security metrics can be used to evaluate the implementation, operation, and outcome of security controls, such as the number of vulnerabilities detected and remediated, the time to respond and recover from incidents, the compliance level with security policies and standards, or the return on security investment. Review of security metrics trends helps to identify and communicate the progress, achievements, and challenges of the security program, as well as to support decision making and continuous improvement. Therefore, review of security metrics trends is the correct answer.

An intrusion detection system (IDS) is a software or hardware device that monitors network traffic and detects unauthorized or malicious activities, such as attacks, intrusions, or breaches. An IDS can provide valuable evidence for an information security team to investigate an alleged breach of an organization’s network, as it can capture and analyze the network traffic in real time or after the fact. An IDS can help to identify the source, type, scope, and impact of the breach, as well as to generate alerts and reports for further investigation.

File integrity monitoring software (FIM), security information and event management (SIEM) tool, and antivirus software are not single sources of evidence for an information security team to review. FIM software monitors files and directories on a network or system and detects changes or modifications that may indicate unauthorized access or tampering. SIEM tool collects and correlates data from various sources, such as logs, events, alerts, incidents, and threats, and provides a unified view of the security posture of an organization. Antivirus software scans files and programs on a network or system and detects malware infections that may compromise the security or functionality of the system.

However, these tools are not sufficient by themselves to provide conclusive evidence for an information security team to investigate an alleged breach of an organization’s network. They may provide some clues or indicators of compromise (IOCs), but they may also generate false positives or negatives due to various factors, such as configuration errors, user behavior, benign activities, or evasion techniques. Therefore, an information security team should use multiple sources of evidence from different tools and methods to verify the validity and reliability of the findings.

References = CISM Manual, Chapter 6: Incident Response Planning (IRP), Section 6.2: Evidence Collection1

1: https://store.isaca.org/s/store#/store/browse/cat/a2D4w00000Ac6NNEAZ/tiles

= 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