Section: Volume D
Explanation

Explanation/Reference:
Explanation:
An intrusion detection system (IDS) is a device or software application that monitors network and/or system activities for malicious activities or policy violations and produces reports to a Management Station.
Some systems may attempt to stop an intrusion attempt but this is neither required nor expected of a monitoring system. Intrusion detection and prevention systems (IDPS) are primarily focused on identifying possible incidents, logging information about them, and reporting attempts. In addition, organizations use IDPS for other purposes, such as identifying problems with security policies, documenting existing threats, and deterring individuals from violating security policies.
As IDS detects and gives warning when the violation of security policies of the enterprise occurs, it is a detective control.
Incorrect Answers:
B: These controls make effort to reduce the impact of a threat from problems discovered by detective controls. As IDS only detects but not reduce the impact, hence it is not a corrective control.
C: As IDS only detects the problem when it occurs and not prior of its occurrence, it is not preventive control.
D: These controls make efforts to overcome the impact of the incident on the business, hence IDS is not a recovery control.

The best course of action for the risk practitioner who has identified that the agreed RTO with a SaaS provider is longer than the business expectation is to collaborate with the risk owner to determine the risk response plan. The risk owner is the person who has the authority and accountability to manage the risk within their scope of responsibility. The risk response plan is the document that describes the actions and resources needed to address the risk. By collaborating with the risk owner, the risk practitioner can help to analyze the gap between the agreed RTO and the business expectation, evaluate the potential impact and consequences, and select the most appropriate risk response option, such as avoiding, reducing, transferring, or accepting the risk.
Documenting the gap in the risk register, including a right to audit clause in the service provider contract, or advising the risk owner to accept the risk are not the best courses of action, because they do not address the root cause of the problem, or provide a solution to reduce the risk to an acceptable level. References = Risk and Information Systems Control Study Manual, Chapter 4, Section 4.3.1, page 4-23.

A risk map, also known as a risk heat map, is a visual tool that helps an enterprise prioritize risk scenarios by plotting them on a matrix based on their likelihood and impact. A risk map can help to compare and contrast different risk scenarios, as well as to identify the most critical and urgent risks that require attention. A risk map can also help to communicate and report the risk profile and status to the stakeholders and decision makers. Therefore, the placement on the risk map would best help an enterprise prioritize risk scenarios. The other options are not the best ways to help an enterprise prioritize risk scenarios, although they may be relevant and useful. Industry best practices are the standards or guidelines that are widely accepted and followed by the organizations in a specific industry or domain. Industry best practices can help to benchmark and improve the risk management process and performance, but they may not reflect the specific risk context and needs of the enterprise. Degree of variances in the risk is the measure of the variability or uncertainty of the risk, which may affect the accuracy or reliability of the risk assessment and response. Degree of variances in the risk can help to adjust and refine the risk analysis and treatment, but it may not indicate the priority or importance of the risk. Cost of risk mitigation is the amount of resources or expenses that are required or allocated to implement the risk response actions, such as avoiding, transferring, mitigating, or accepting the risk. Cost of risk mitigation can help to evaluate and optimize the risk response options, but it may not determine the priority or urgency of the risk. References = CRISC Review Manual, pages 38-391; CRISC Review Questions, Answers & Explanations Manual, page 892