Continuous monitoring plan documented

Without a continuous monitoring plan, security controls degrade silently after initial deployment: certificates expire, dependency vulnerabilities accumulate, access logs fill with anomalies no one reviews, and permission creep goes undetected. NIST 800-53 rev5 CA-7 (Continuous Monitoring) is a cornerstone FISMA control that requires defined monitoring frequency, event types, and review schedules; AU-6 (Audit Record Review, Analysis, and Reporting) mandates regular review of audit logs. FedRAMP rev5 CA-7 requires monthly vulnerability scans and annual penetration testing with documented results. CMMC 2.0 CA.L2-3.12.3 mandates a continuous monitoring strategy. A security posture that was compliant at ATO can drift out of compliance within weeks without a documented monitoring cadence.

Create docs/continuous-monitoring-plan.md specifying tools, event types, review cadence, and escalation tiers. Reference actual tool names already deployed in your stack.

# Continuous Monitoring Plan

## Monitoring Tools
- Logs: Vercel Log Drains → Datadog (or CloudWatch)
- Uptime: Checkly or Better Uptime — 1-minute ping interval
- Vulnerability scanning: `npm audit` in CI on every PR; Snyk weekly full scan
- Dependency updates: Dependabot (daily, security-updates group)

## Events Monitored
1. Failed login attempts (threshold: >10/min per IP → P1 alert)
2. Privilege escalation (any role change → immediate Slack alert)
3. Unrecognized admin session (new device + admin role → P1)
4. 5xx error rate spike (>5% over 5-minute window → P2)
5. Dependency CVE published for a direct dependency → P2
6. Certificate expiry <30 days → P2

## Review Cadence
- **Daily:** Automated alert triage; Datadog error dashboard
- **Weekly:** Vulnerability scan results; access log anomaly review
- **Monthly:** Full audit log review; user access recertification; FedRAMP ConMon report

## Escalation Levels
- **P1 (Critical):** PagerDuty → on-call engineer within 15 minutes; incident response activated
- **P2 (High):** Slack #security → acknowledged within 4 hours; remediated within 7 days
- **P3 (Medium):** Ticket created; remediated within 30 days
- **P4 (Low):** Logged; reviewed at next monthly security sync