SECURITY.md

# Security Policy

## Enterprise Security Standards

WidgetBoard is built with enterprise-grade security as a foundational principle. This document outlines our security practices, compliance measures, and vulnerability reporting procedures.

## Security Architecture

### Zero-Trust Principles

- **Authentication Required**: All API endpoints require valid authentication tokens
- **Least Privilege Access**: Users and services operate with minimum necessary permissions
- **Defense in Depth**: Multiple layers of security controls
- **Continuous Verification**: Regular security audits and penetration testing

### Data Protection

#### Encryption Standards

- **In Transit**: All data transmitted using TLS 1.3 or higher
- **At Rest**: Sensitive data encrypted using AES-256
- **Key Management**: Secure key rotation every 90 days
- **Password Storage**: bcrypt with minimum work factor of 12

#### Data Classification

| Classification | Examples | Protection Level |
|---------------|----------|------------------|
| Public | Marketing materials | Standard |
| Internal | User preferences | Encrypted in transit |
| Confidential | Email content | Encrypted at rest + transit |
| Restricted | Authentication tokens | Hardware security module |

### Authentication & Authorization

#### OAuth 2.0 Implementation

- **Authorization Code Flow with PKCE** for public clients
- **Token Expiry**: Access tokens expire after 1 hour
- **Refresh Tokens**: Rotated with each use, 30-day maximum lifetime
- **Multi-Factor Authentication**: Required for administrative access

#### Role-Based Access Control (RBAC)

```
Roles:
- Administrator: Full system access
- Power User: Widget creation and management
- Standard User: Widget usage only
- Guest: Read-only access to public widgets
```

### API Security

#### Rate Limiting

- **Per User**: 100 requests per minute
- **Per IP**: 1000 requests per minute
- **Burst Protection**: 10 requests per second maximum

#### Input Validation

- All input sanitized against XSS attacks
- SQL injection prevention via parameterized queries
- Command injection prevention
- Path traversal protection

#### Content Security Policy (CSP)

```
default-src 'self';
script-src 'self' 'unsafe-inline' 'unsafe-eval';
style-src 'self' 'unsafe-inline';
img-src 'self' data: https:;
connect-src 'self' wss: https:;
font-src 'self';
object-src 'none';
base-uri 'self';
form-action 'self';
frame-ancestors 'none';
```

### MCP (Model Context Protocol) Security

#### WebSocket Security

- **WSS Protocol**: All MCP connections use secure WebSocket (wss://)
- **Connection Authentication**: JWT tokens validated on connection
- **Message Encryption**: End-to-end encryption for sensitive data
- **Connection Limits**: Maximum 5 concurrent connections per user

#### Circuit Breaker Pattern

- **Failure Threshold**: 5 consecutive failures
- **Timeout Duration**: 30 seconds
- **Reset Interval**: 60 seconds after success

### Microsoft Outlook Integration Security

#### Microsoft Graph API

- **Delegated Permissions**: Minimum required scopes only
- **Token Storage**: Encrypted in secure storage
- **Token Refresh**: Automatic with secure rotation
- **API Rate Limiting**: Respects Microsoft Graph throttling

#### Email Data Handling

- **PII Protection**: Personal information anonymized in logs
- **Data Retention**: Email content cached for max 24 hours
- **Access Logging**: All email access audited
- **Consent Management**: Explicit user consent required

## Compliance Standards

### GDPR Compliance

- **Data Subject Rights**: Right to access, rectification, erasure, portability
- **Privacy by Design**: Privacy controls built into every feature
- **Data Processing Agreement**: Available for enterprise customers
- **Data Protection Impact Assessment**: Conducted annually

### ISO 27001 Alignment

- **Information Security Management System (ISMS)**: Documented and maintained
- **Risk Assessment**: Quarterly risk reviews
- **Incident Response**: 24/7 security team
- **Business Continuity**: Tested disaster recovery procedures

### OWASP Top 10 Protection

| Risk | Mitigation |
|------|-----------|
| Injection | Parameterized queries, input validation |
| Broken Authentication | OAuth 2.0, MFA, secure session management |
| Sensitive Data Exposure | Encryption, secure key storage |
| XML External Entities | XML parsing disabled |
| Broken Access Control | RBAC, principle of least privilege |
| Security Misconfiguration | Automated security scans, hardened defaults |
| XSS | Content Security Policy, input sanitization |
| Insecure Deserialization | Validation, type checking |
| Using Components with Known Vulnerabilities | Automated dependency scanning |
| Insufficient Logging & Monitoring | Comprehensive audit trails |

## Security Monitoring

### Logging

- **Authentication Events**: All login attempts logged
- **Authorization Failures**: Access denials tracked
- **API Errors**: Error rates monitored
- **Security Events**: Suspicious activity flagged

### Alerts

**Critical Alerts** (Immediate Response):
- Multiple failed login attempts
- Unauthorized access attempts
- Data breach indicators
- Service outages

**Warning Alerts** (4-hour Response):
- Unusual traffic patterns
- Failed API calls spike
- Certificate expiration warnings

### Metrics

- **Security Event Rate**: < 0.01% of total requests
- **Mean Time to Detection**: < 5 minutes
- **Mean Time to Response**: < 15 minutes
- **Vulnerability Remediation**: < 24 hours for critical

## Vulnerability Management

### Reporting Security Issues

**DO NOT** open public GitHub issues for security vulnerabilities.

Please report security vulnerabilities to: **security@widgetboard.example.com**

Include:
- Description of the vulnerability
- Steps to reproduce
- Potential impact
- Suggested mitigation (if any)

### Response Timeline

- **Acknowledgment**: Within 24 hours
- **Initial Assessment**: Within 72 hours
- **Patch Development**: Based on severity
  - Critical: 24 hours
  - High: 7 days
  - Medium: 30 days
  - Low: Next release cycle

### Disclosure Policy

- **Coordinated Disclosure**: 90-day embargo for patches
- **Security Advisories**: Published after patch deployment
- **CVE Assignment**: For confirmed vulnerabilities
- **Hall of Fame**: Recognition for responsible disclosure

## Security Best Practices for Developers

### Code Review Requirements

- **Two Reviewers**: All security-related code requires two approvals
- **Security Checklist**: Must be completed for each PR
- **Automated Scanning**: CodeQL and dependency checks required
- **Manual Testing**: Security features tested manually

### Secure Development Lifecycle

1. **Threat Modeling**: Before design phase
2. **Security Requirements**: Defined with features
3. **Secure Coding**: Following OWASP guidelines
4. **Security Testing**: Automated and manual
5. **Security Review**: Before production deployment
6. **Incident Response**: 24/7 monitoring

### Dependencies

- **Automated Scanning**: Daily dependency vulnerability scans
- **Update Policy**: Critical vulnerabilities patched within 24 hours
- **Version Pinning**: Exact versions in package-lock.json
- **License Compliance**: Only approved open-source licenses

## Security Audit Trail

### Audit Logging

All security-relevant events are logged with:
- Timestamp (UTC)
- User ID / IP Address
- Action performed
- Resource accessed
- Result (success/failure)
- Request/Response data (sanitized)

### Retention

- **Security Logs**: 1 year
- **Audit Trails**: 7 years (compliance requirement)
- **Access Logs**: 90 days

## Incident Response

### Security Incident Classification

**P0 - Critical**: Active breach, data exposure
- **Response Time**: Immediate
- **Team**: Full security team + management

**P1 - High**: Vulnerability actively exploited
- **Response Time**: < 1 hour
- **Team**: Security team

**P2 - Medium**: Potential vulnerability identified
- **Response Time**: < 4 hours
- **Team**: Security engineer

**P3 - Low**: Security concern, no immediate risk
- **Response Time**: Next business day
- **Team**: Development team

### Response Procedures

1. **Detection**: Automated monitoring or report received
2. **Containment**: Isolate affected systems
3. **Eradication**: Remove threat, patch vulnerability
4. **Recovery**: Restore services, verify security
5. **Lessons Learned**: Document and improve

## Security Contact

- **Email**: security@widgetboard.example.com
- **PGP Key**: [Link to public key]
- **Bug Bounty**: [Link to program details]

## Acknowledgments

We thank the security researchers who have responsibly disclosed vulnerabilities:

- [Hall of Fame will be maintained here]

---

**Last Updated**: 2024-11-14  
**Next Review**: 2025-02-14 (Quarterly)  
**Document Owner**: Chief Security Officer