Security Metrics Dashboard Prompt

Design a security metrics dashboard.

Audience: [CISO / exec team / IT / board]
Security tools: [SIEM, endpoint, identity, monitoring]
Key concerns: [phishing rates / patch compliance / access anomalies / incident response times]
Reporting cadence: [weekly / monthly / quarterly]

Please design:
1. 8-10 most important metrics
2. For each: definition, measurement, what 'good' looks like, alert threshold
3. Leading vs lagging indicators
4. Suggested layout (exec summary vs detail)
5. Red/amber/green thresholds for each metric