D8 · CySA+

What are security metrics?

Key metrics: MTTD (Mean Time to Detect), MTTR (Mean Time to Respond/Remediate), patch SLA compliance %, % critical vulns remediated, phishing click rate, alert volume trend.
Metrics drive improvement. MTTD: how fast you detect breaches. MTTR: how fast you respond. Track trends — improving over time matters more than absolute values. Executive reporting: translate technical metrics into business risk language (cost of data breach, regulatory exposure).
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