This can help to:
* Ensure that the implemented measures are effective and efficient in reducing the risk level to an acceptable level, and that they are aligned with the risk appetite and tolerance of the organization2.
* Identify and address any gaps, issues, or challenges that may arise from the deviation from the approved risk action plan, and recommend and implement appropriate improvement actions or contingency plans3.
* Communicate and report the results and outcomes of the validation to the relevant stakeholders, such as the risk owner, the risk committee, or the chief risk officer, and obtain their feedback and approval4.
The other options are not the best course of action, because:
* Reporting the observation to the chief risk officer (CRO) is not the best course of action, as it may not provide sufficient information or evidence to support the deviation from the approved risk action plan. The CRO may not be able to evaluate or approve the implemented risk mitigation measures without knowing their adequacy or impact on the risk level5.
* Updating the risk register with the implemented risk mitigation actions is not the best course of action, as it may not reflect the current or accurate risk status or performance. The risk register is a document that records and summarizes the key information and data about the identified risks and the risk responses6. Updating the risk register without validating the adequacy of the implemented risk mitigation measures may create inconsistencies or inaccuracies in the risk register.
* Reverting the implemented mitigation measures until approval is obtained is not the best course of action, as it may expose the organization to higher or unacceptable levels of risk. Reverting the implemented mitigation measures may undo or negate the benefits or outcomes of the risk mitigation, and may increase the likelihood or impact of the risk events7.
References =
* ISACA Risk Starter Kit provides risk management templates and policies
* Risk Appetite and Tolerance - CIO Wiki
* Risk Monitoring and Review - The National Academies Press
* Risk Reporting - CIO Wiki
* Chief Risk Officer - CIO Wiki
* Risk Register - CIO Wiki
* Risk Mitigation - CIO Wiki

The best way to prevent technical vulnerabilities from being exploited is to update the software with the latest patches and updates. Patches and updates are software modifications that fix the known bugs, errors, or flaws in the software. They also improve the performance, functionality, and security of the software. By updating the software with the latest patches and updates, the company can reduce the exposure and likelihood of the technical vulnerabilities, and protect the software from potential attacks or exploits. The other options are not as effective as updating the software with the latest patches and updates, as they are related to the quality assurance, legal protection, or error handling of the software, not the prevention or mitigation of the technical vulnerabilities. References = Risk and Information Systems Control Study Manual, Chapter 3: IT Risk Response, Section 3.3: IT Risk Response Implementation, page 145.

The risk practitioner's BEST course of action is to validate the transfer of risk and update the register to reflect the change, because outsourcing the backup and recovery procedures to a third-party cloud provider does not eliminate the risk, but rather transfers it to the service provider. The risk practitioner should verify that the service provider has adequate controls and capabilities to handle the backup and recovery procedures, and that the contractual agreement specifies the roles and responsibilities of both parties. The risk practitioner should also update the risk register to reflect the new risk owner and the residual risk level. The other options are not the best course of action, because:
* Option A: Accepting the risk and documenting contingency plans for data disruption is not the best course of action, because it implies that the risk practitioner is still responsible for the risk, even though it has been transferred to the service provider. Contingency plans are also reactive measures, rather than proactive ones.
* Option B: Removing the associated risk scenario from the risk register due to avoidance is not the best course of action, because it implies that the risk has been eliminated, which is not the case. The risk still exists, but it has been transferred to the service provider. The risk register should reflect the current risk status and ownership.
* Option C: Mitigating the risk with compensating controls enforced by the third-party cloud provider is not the best course of action, because it implies that the risk practitioner is still involved in the risk management process, even though the risk has been transferred to the service provider. The risk practitioner should rely on the service provider's controls and capabilities, and monitor their performance and compliance. References = Risk and Information Systems Control Study Manual, 7th Edition, ISACA, 2020, p. 196.

The most effective way for a large and diversified organization to minimize risk associated with unauthorized software on company devices is to scan end points for applications not included in the asset inventory. An asset inventory is a document that records and tracks all the hardware and software assets that are owned, used, or managed by the organization, such as laptops, tablets, smartphones, servers, applications, etc. An asset inventory helps to identify and classify the assets based on their type, model, location, owner, status, etc.
An asset inventory also helps to monitor and control the assets, such as enforcing security policies, applying patches and updates, detecting and resolving issues, etc. Scanning end points for applications not included in the asset inventory helps to minimize the risk of unauthorized software, because it helps to discover and remove any software that is not approved, authorized, or licensed by the organization, and that may pose security, legal, or operational risks, such as malware, spyware, pirated software, etc. The other options are not as effective as scanning end points for applications not included in the asset inventory, although they may provide some protection or compliance for the software assets. Prohibiting the use of cloud-based virtual desktop software, conducting frequent reviews of software licenses, and performing frequent internal audits of enterprise IT infrastructure are all examples of preventive or detective controls, which may help to prevent or deter the installation or use of unauthorized software, or to verify or validate the software assets, but they do not necessarily discover or remove the unauthorized software. References = Risk and Information Systems Control Study Manual, Chapter 3, Section 3.2.1, page 3-11.

A cloud access security broker (CASB) solution is the best way to enforce access control for an organization that uses multiple cloud technologies, as it provides a centralized and consistent platform to manage and monitor the access to various cloud services and applications. A CASB solution can help to implement and enforce the enterprise's access policies and standards, as well as to detect and prevent unauthorized or malicious access attempts. Senior management support of cloud adoption strategies, creation of a cloud access risk management policy, and expansion of security information and event management (SIEM) to cloud services are not the best ways to enforce access control for an organization that uses multiple cloud technologies, as they do not provide the technical capabilities or tools to manage and monitor the access to various cloud services and applications. References = CRISC by Isaca Actual Free Exam Q&As, question
210; CRISC: Certified in Risk & Information Systems Control Sample Questions, question 210.