StudyToCert

All certifications / CySA+ / Lessons

CompTIA CySA+ CS0-004 · Domain 4: Reporting & communication

Metrics and KPIs: trends, top 10 lists, critical vulnerabilities, zero-days, SLA compliance

▶ Watch the overview video

Last reviewed September 30, 2026 · Leer en español

Metrics tell you and your leadership whether the security program is working. A metric is any measured value, such as the number of open critical vulnerabilities. A key performance indicator (KPI) is a metric chosen because it reflects progress toward an important goal, usually with a target, such as the percentage of critical vulnerabilities fixed within the SLA. Good metrics lead to decisions; vanity metrics, such as the raw number of blocked connections, look impressive but change nothing.

Free account

Keep reading for free

Create a free StudyToCert account to read the rest of this lesson: 7 more sections, 7 key terms, a real-world example, an exam tip and self-check questions. Every lesson, lab and practice test is free with an account.

Sign up free Log in

Study CySA+ for free
A week-by-week plan with every lesson, quizzes, checkpoint tests, a practice exam and hands-on labs.
Open the CySA+ study plan