Isaca Updated CISM Exam Questions and Answers by georgi

Isolating the affected system is the first step in the incident response process, as it helps to contain the attack, prevent further damage, and preserve the evidence for analysis. Isolating the system can be done by disconnecting it from the network, blocking the malicious traffic, or applying quarantine rules.

References = CISM Review Manual 2022, page 3121; CISM Exam Content Outline, Domain 4, Task 4.22; Cybersecurity Incident Response Exercise Guidance3

Senior management support is essential to ensuring effective incident response because it provides the necessary authority, resources, and guidance for the information security team to perform their roles and responsibilities. Senior management support also helps to establish the goals, scope, policies, and procedures for the incident response plan (IRP), as well as to ensure its alignment with the business objectives and strategy. Senior management support also fosters a culture of security awareness, accountability, and collaboration among all stakeholders involved in the incident response process.

The other options are not essential to ensuring effective incident response, although they may be helpful or beneficial. A business continuity plan (BCP) is a document that outlines the actions and arrangements to ensure the continuity of critical business functions in the event of a disruption or disaster. A cost-benefit analysis is a method of comparing the costs and benefits of different alternatives or solutions to a problem. A classification scheme is a system of categorizing information assets based on their sensitivity, value, and criticality.

References = CISM Manual1, Chapter 6: Incident Response Planning (IRP), Section 6.1: Incident Response Plan2

1: https://store.isaca.org/s/store#/store/browse/cat/a2D4w00000Ac6NNEAZ/tiles 2: 4

 A business impact analysis (BIA) is the process of identifying and evaluating the potential effects of disruptions to critical business functions or processes. A BIA helps to determine the recovery priorities, objectives, and strategies for the organization in the event of a disaster or crisis. A BIA also helps to identify the worst-case disruption scenarios, which are the scenarios that would cause the most severe impact to the organization in terms of financial, operational, reputational, or legal consequences. By conducting a BIA, the organization can assess the likelihood and impact of various disruption scenarios, and plan accordingly to mitigate the risks and ensure business continuity and resilience. References = CISM Review Manual 15th Edition, page 181, page 183.

The best thing to include in a business case when the return on investment (ROI) for an information security initiative is difficult to calculate is an estimated reduction in risk. Risk reduction is the expected benefit of implementing an information security initiative, as it reduces the likelihood and impact of threats and vulnerabilities that may affect the organization’s information assets and systems. By estimating the reduction in risk, the information security manager can demonstrate the value and benefits of the information security initiative to the organization’s performance, reputation, and competitiveness. The information security manager can also compare the estimated reduction in risk with the estimated cost of the information security initiative to determine its cost-effectiveness and feasibility. The other options are not the best thing to include in a business case, although they may be some inputs or outputs of the risk assessment process. A projected increase in maturity level is a potential outcome of implementing an information security initiative, as it improves the organization’s capabilities and processes for managing information security risks. However, it does not necessarily reflect the actual reduction in risk or the ROI of the information security initiative. A projected cost over time is a component of calculating the ROI of an information security initiative, as it reflects the total cost of ownership and maintenance of the initiative. However, it does not indicate the expected benefit or value of the initiative. An estimated increase in efficiency is a possible benefit of implementing an information security initiative, as it may enhance the organization’s productivity and performance. However, it may not be directly related to the reduction in risk or the ROI of the information security initiative.