Security Metrics

Security metrics are quantitative measures used to assess, monitor, and improve the security posture of an organization, system, or application. They provide objective data to track security performance, identify vulnerabilities, and support decision-making in risk management. Common examples include mean time to detect (MTTD), mean time to respond (MTTR), and vulnerability counts.

Also known as: Security KPIs, Cybersecurity Metrics, Security Performance Indicators, SecMetrics, Security Measurement

Why learn Security Metrics?

Developers should learn and use security metrics to quantify security risks, prioritize remediation efforts, and demonstrate compliance with security standards. This is crucial in DevOps and DevSecOps environments for continuous security monitoring, in incident response to measure effectiveness, and for reporting to stakeholders on security health.

Learning Resources

• docs: NIST Special Publication 800-55: Performance Measurement Guide for Information Security
• docs: OWASP Security Metrics
• docs: CIS Critical Security Controls - Metrics
• video: Security Metrics: A Beginner's Guide on YouTube
• course: Coursera: Cybersecurity Metrics and Reporting