Section: Volume D

According to the CRISC Review Manual1, cost of controls is the amount of money or resources that an organization is willing to spend to implement and maintain risk responses. Cost of controls is one of the factors that influences the risk appetite of an organization, as it reflects the trade-off between the benefits and costs of risk responses. Cost of controls helps to determine the optimal level of risk that an organization can accept in pursuit of its objectives, and to align the risk responses with the organization's strategy, goals, and culture. References = CRISC Review Manual1, page 193.

A vulnerability management process is a process that identifies, analyzes, prioritizes, and remediates the vulnerabilities in the IT systems and applications. The effectiveness of a vulnerability management process can be measured by the key performance indicators (KPIs) that reflect the achievement of the process objectives and the alignment with the enterprise's risk appetite and tolerance. The best KPI to measure the effectiveness of a vulnerability management process is the percentage of vulnerabilities remediated within the agreed service level. This KPI indicates how well the process is able to address the vulnerabilities in a timely and efficient manner, and reduce the exposure and impact of the risks associated with the vulnerabilities. The other options are not as good as the percentage of vulnerabilities remediated within the agreed service level, as they may not reflect the quality or timeliness of the remediation actions, or the alignment with the enterprise's risk appetite and tolerance. References = Risk and Information Systems Control Study Manual, 7th Edition, Chapter 4, Section 4.3.2.1, pp. 171-172.