Security Monitoring and Alerting (api-sec-009)

[kvnloo]

Objective

Implement monitoring and alerting for security events and anomalies.

Requirements

• Create security event monitoring
• Implement anomaly detection
• Add failed login tracking
• Implement brute force protection
• Add geographic anomaly detection
• Create alert system
• Implement notification channels
• Add dashboard for security events
• Create incident response procedures

Monitored Events

• Failed authentication attempts
• Unauthorized access attempts
• Rate limit violations
• Unusual access patterns
• Geographic anomalies (impossible travel)
• Multiple failed logins from same IP
• Suspicious API key usage
• Configuration changes

Alert Triggers

• 5+ failed logins in 5 minutes
• Unauthorized access from new location
• Sudden spike in API requests
• Rate limit exceeded frequently
• Data access anomalies
• Configuration modification attempts

Implementation Files

• src/services/security/monitor.ts
• src/services/security/anomalyDetector.ts
• src/services/alerts/alerting.ts
• src/services/alerts/notifier.ts

Acceptance Criteria

• All critical events monitored
• Anomaly detection functional
• Alerts sent to appropriate channels
• Dashboard shows security overview
• False positive rate < 5%

Depends on: #2 (JWT), #6 (Audit Logging)
Priority: High