Explanation:
The risk landscape is the set of internal and external factors and conditions that may affect the organization's objectives and operations, and create or influence the risks that the organization faces. The risk landscape is dynamic and complex, and it may change over time due to various drivers or events, such as technological innovations, market trends, regulatory changes, customer preferences, competitor actions, environmental issues, etc. The best way to identify changes to the risk landscape is threat modeling, which is the process of identifying, analyzing, and prioritizing the potential threats or sources of harm that may exploit the vulnerabilities or weaknesses in the organization's assets, processes, or systems, and cause adverse impacts or consequences for the organization. Threat modeling can help the organization to anticipate and prepare for the changes in the risk landscape, and to design and implement appropriate controls or countermeasures to mitigate or prevent the threats.
Threat modeling can be performed using various techniques, such as brainstorming, scenario analysis, attack trees, STRIDE, DREAD, etc. Threat modeling can also be integrated with the risk management process, and aligned with the organization's objectives and risk appetite. The other options are not the best ways to identify changes to the risk landscape, because they do not provide the same level of proactivity, comprehensiveness, and effectiveness of identifying and addressing the potential threats or sources of harm that may affect the organization.
Internal audit reports are the documents that provide the results and findings of the internal audits that are performed to assess and evaluate the adequacy and effectiveness of the organization's governance, risk management, and control functions. Internal audit reports can provide useful information and recommendations on the current state and performance of the organization, and identify the issues or gaps that need to be addressed or improved, but they are not the best way to identify changes to the risk landscape, because they areusually retrospective and reactive, and they may not cover all the relevant or emerging threats or sources of harm that may affect the organization.
Access reviews are the processes of verifying and validating the access rights and privileges that are granted to the users or entities that interact with the organization's assets, processes, orsystems, and ensuring that they are appropriate and authorized. Access reviews can provide useful information and feedback on the security and compliance of the organization's access management, and identify and revoke any unauthorized or unnecessary access rights or privileges, but they are not the best way to identify changes to the risk landscape, because they are usually periodic and specific, and they may not cover all the relevant or emerging threats or sources of harm that may affect the organization. Root cause analysis is the process of identifying and understanding the underlying or fundamental causes or factors that contribute to or result in a problem or incident that has occurred or may occur in the organization. Root cause analysis can provide useful insights and solutions on the origin and nature of the problem or incident, and prevent or reduce its recurrence or impact, but it is not the best way to identify changes to the risk landscape, because it is usually retrospective and reactive, and it may not cover all the relevant or emerging threats or sources of harm that may affect the organization. References = ISACA, CRISC Review Manual, 7th Edition, 2022, pp. 19-20, 23-24, 27-28, 31-32, 40-41, 47-48, 54-55, 58-59, 62-63
ISACA, CRISC Review Questions, Answers & Explanations Database, 2022, QID 167 CRISC Practice Quiz and Exam Prep