A risk register is a document that records and tracks the information and status of the identified risks and their responses. It includes the risk description, category, source, cause, impact, probability, priority, response, owner, action plan, status, etc.

Periodically reviewing and updating a risk register with details on identified risk factors primarily helps to provide a current reference to stakeholders for risk-based decisions, which are the decisions that are made based on the consideration and evaluation of the risks and their responses. Providing a current reference to stakeholders for risk-based decisions helps to ensure that the decisions are consistent, appropriate, and proportional to the level and nature of the risks, and that they support the organization’s objectives and values. It also helps to optimize the balance between risk and return, and to create and protect value for the organization and its stakeholders.

The other options are not the primary benefits of periodically reviewing and updating a risk register with details on identified risk factors, because they do not address the main purpose and benefit of a risk register, which is to provide a current reference to stakeholders for risk-based decisions.

Minimizing the number of risk scenarios for risk assessment means reducing the scope and depth of risk analysis and reporting, and impairing the organization’s ability to identify and respond to emerging or changing risks. Periodically reviewing and updating a risk register with details onidentified risk factors does not necessarily minimize the number of risk scenarios for risk assessment, and it may not be a desirable or beneficial outcome for the organization.

Aggregating risk scenarios identified across different business units means combining or consolidating the risks that are identified by different parts or functions of the organization, and creating a holistic or integrated view of the organization’s risk profile. Periodically reviewing and updating a risk register with details on identified risk factors does not necessarily aggregate risk scenarios identified across different business units, and it may not be a sufficient or effective way to achieve a holistic or integrated view of the organization’s risk profile.

Building a threat profile of the organization for management review means creating or developing a summary or representation of the potential threats or sources of harm that may affect the organization’s objectives and operations, and presenting or reporting it to the senior management for their awareness and approval. Periodically reviewing and updating a risk register with details on identified risk factors does not necessarily build a threat profile of the organization for management review, and it may not be a comprehensive or reliable way to create or develop a summary or representation of the potential 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 172

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