According to the CRISC Review Manual, a control owner is the person who is accountable for ensuring that specific control activities are performed. The control owner is responsible for defining, implementing, monitoring, and improving the control. Therefore, the control owner should authorize changing the control threshold value, as it is part of their role to ensure that the control is effective and efficient. The other options are not the correct answers, because they are not directly involved in the control activities. The risk owner is the person who is accountable for the risk and its associated mitigation actions. The IT security manager is the person who is responsible for overseeing the IT security function and ensuring that the IT security policy is enforced. The IT system owner is the person who is responsible for the operation and maintenance of the IT system and its associated data. References = CRISC Review Manual, 7th Edition, Chapter 3, Section 3.1.2, page 108.

The most important key performance indicator (KPI) to monitor the effectiveness of disaster recovery processes is the percentage of IT systems meeting the recovery time objective (RTO) during the disaster recovery test. The RTO is the maximum acceptable time that a system orprocess can be unavailable after a disruption. The disaster recovery test is a simulation of a disaster scenario to evaluate the readiness and capability of the organization to restore its critical functions and systems. By measuring the percentage ofIT systems meeting the RTO during the test, the organization can assess how well the disaster recovery processes meet the predefined objectives and standards. Percentage of IT systems recovered within the mean time to restore (MTTR), percentage of issues arising from the disaster recovery test resolved on time, and percentage of IT systems included in the disaster recovery test scope are other possible KPIs, but they are not as important as the percentage of IT systems meeting the RTO. References = ISACA Certified in Risk and Information Systems Control (CRISC) Certification Exam Question and Answers, question 12; CRISC Review Manual, 6th Edition, page 215.

Alignment to business objectives is the most important factor when developing a business case for a proposed security investment, because it demonstrates how the investment will support the enterprise's mission, vision, and goals. A business case should show how the security investment will contribute to the value creation, risk reduction, and performance improvement of the enterprise. The other options are not the most important factors, although they may also be included in the business case. The identification of control requirements, the consideration of new business strategies, and the inclusion of strategy for regulatory compliance are secondary factors that depend on the alignment to business objectives. References = Most Asked CRISC Exam Questions and Answers

According to the GDPR, personal data shall be collected for specified, explicit and legitimate purposes and not further processed in a manner that is incompatible with those purposes1. This means that a business unit can only use personal information for a different purpose if it has obtained the consent of the data subject, or if it has a clear legal basis or obligation to do so2. Therefore, informed consent should be the first consideration when a business unit wants to use personal information for a purpose other than for which it was originally collected.
References = GDPR Article 5 (1) (b) and Article 6 (4)1, ICO Principle (b): Purpose limitation2

An IT policy is a document that defines the rules, standards, and procedures for the use, management, and security of IT resources within an organization. An IT policy should be aligned to the business requirements, which are the needs, expectations, and objectives of the business stakeholders, such as customers, employees, managers, partners, regulators, etc. An IT policy that is aligned to the business requirements can help support the business strategy, improve the business performance, and enhance the business value. A key performance indicator (KPI) is a metric that measures the achievement of a specific goal or objective. A KPI should be relevant, measurable, achievable, realistic, and time-bound. The best KPI for determining how well an IT policy is aligned to the business requirements is the number of exceptions to the policy. An exception to the policy is a deviation or violation of the policy rules, standards, or procedures, which may be intentional or unintentional, authorized or unauthorized, justified or unjustified. The number of exceptions to the policy can indicate how well the policy is understood, communicated, implemented, and enforced within the organization. The number of exceptions to the policy can also indicate how well the policy reflects the current and future business needs and expectations, and how flexible and adaptable the policy is to the changing business environment. A low number of exceptions to the policy can suggest that the policy is well aligned to the business requirements, while a high number of exceptions to the policy can suggest that the policy is misaligned or outdated, and may need to be reviewed or revised. References = Key Performance Indicator (KPI): Definition, Types, and Examples, Business KPIs: 5 important characteristics to be effective, What is a KPI? How To Choose the Best KPIs for Your Business - HubSpot Blog.