According to the National Institute of Standards and Technology (NIST), what three security metrics are proposed?

The selection of implementation measures, efficiency and effectiveness measures, and impact measures as proposed security metrics by the National Institute of Standards and Technology (NIST) emphasizes a comprehensive approach to evaluating security practices.

Implementation measures focus on how well security controls are placed within an organization, examining whether all necessary security measures are in place according to established standards. This is essential for ensuring that security protocols are not just theoretical but actively operational.

Efficiency and effectiveness measures evaluate how well security resources are being used. Efficiency looks at the resource utilization relative to the output it generates, while effectiveness assesses whether the security measures are achieving their intended outcomes, such as reducing vulnerabilities or thwarting breaches.

Impact measures assess the consequences of security actions or incidents. This could involve analyzing how security events affect the organization’s data integrity, reputation, operational continuity, and compliance obligations. Understanding the impact of security decisions is crucial for informed decision-making and prioritizing resources.

Together, these metrics provide a well-rounded methodology for assessing and improving security postures in organizations, aligning with NIST's focus on practical and applicable cybersecurity solutions.