Security & Privacy

// Role-based access control
interface UserRole {
  campaign_owner: {
    permissions: [
      'create_stories',
      'edit_stories',
      'delete_stories',
      'invite_family',
      'manage_settings',
      'create_books',
      'view_analytics',
    ]
  }
  family_contributor: {
    permissions: [
      'create_stories',
      'edit_own_stories',
      'comment_on_stories',
      'upload_photos',
    ]
  }
  family_viewer: {
    permissions: ['view_stories', 'comment_on_stories']
  }
}
``` -->
 
### Family Access Control
 
- **Campaign Ownership** - Only campaign creators can manage settings
- **Invitation-Only** - Stories only accessible to invited family members
- **Permission Levels** - Granular control over what family members can do
- **Access Revocation** - Remove family member access instantly
 
## Data Protection
 
### Encryption
 
**Data in Transit:**
 
- **TLS 1.3** - All communications encrypted with latest TLS
- **HSTS** - HTTP Strict Transport Security enforced
- **Certificate Pinning** - Protection against man-in-the-middle attacks
 
**Data at Rest:**
 
- **AES-256** - Military-grade encryption for stored data
- **Encrypted Backups** - All backups encrypted with separate keys
- **Database Encryption** - PostgreSQL transparent data encryption
- **File Storage Encryption** - Photos and audio files encrypted
 
### Key Management
 
```typescript
// Encryption key hierarchy
interface EncryptionKeys {
  master_key: {
    algorithm: 'AES-256-GCM'
    rotation_period: '90 days'
    storage: 'Hardware Security Module (HSM)'
  }
  data_encryption_keys: {
    algorithm: 'AES-256-GCM'
    per_campaign: true
    auto_rotation: true
  }
  file_encryption_keys: {
    algorithm: 'AES-256-GCM'
    per_file: true
    ephemeral: true
  }
}
``` -->
 
### Data Anonymization
 
- **Personal Identifiers** - Removed from analytics and logs
- **IP Address Masking** - Last octet removed from stored IP addresses
- **Pseudonymization** - Personal data replaced with pseudonyms for processing
 
## Privacy Controls
 
### Data Collection
 
MyStoryFlow collects only the minimum data necessary to provide services:
 
**Required Data:**
 
- Email address (for account creation)
- Stories and content you create
- Photos you upload
- Basic usage analytics
 
**Optional Data:**
 
- Name and profile information
- Voice recordings
- Family member contact information
 
### User Rights
 
Under GDPR and CCPA, users have the following rights:
 
**Right to Access:**
 
```bash
# Request all personal data
GET /api/user/data-export
Authorization: Bearer {token}
 
# Response includes:
# - User profile data
# - All campaigns and stories
# - Photos and files
# - Family member relationships
``` -->
 
**Right to Rectification:**
 
- Edit profile information
- Update story content
- Correct family member details
 
**Right to Erasure (Right to be Forgotten):**
 
```bash
# Delete user account and all data
DELETE /api/user/account
Authorization: Bearer {token}
 
# Permanently removes:
# - User profile
# - All campaigns owned by user
# - All stories created by user
# - Uploaded photos and files
``` -->
 
**Right to Data Portability:**
 
```bash
# Export data in machine-readable format
GET /api/user/data-export?format=json
Authorization: Bearer {token}
 
# Available formats:
# - JSON (structured data)
# - PDF (formatted stories)
# - ZIP (includes all files)
``` -->
 
### Privacy Settings
 
```typescript
interface PrivacySettings {
  data_sharing: {
    analytics: boolean // Anonymous usage analytics
    improvements: boolean // Product improvement insights
    marketing: boolean // Marketing communications
  }
  family_visibility: {
    profile_photo: 'family' | 'campaign' | 'private'
    activity_status: 'visible' | 'hidden'
    story_notifications: boolean
  }
  communication: {
    email_notifications: boolean
    family_updates: boolean
    product_updates: boolean
  }
}
``` -->
 
## Infrastructure Security
 
### Cloud Security
 
MyStoryFlow is hosted on secure cloud infrastructure:
 
**Hosting Provider:**
 
- **Vercel** - Edge network with global CDN
- **Supabase** - Postgres database with built-in security
- **AWS S3** - Encrypted file storage with access controls
 
**Network Security:**
 
- **DDoS Protection** - Automatic mitigation of attacks
- **WAF (Web Application Firewall)** - Protection against common attacks
- **Rate Limiting** - API endpoint protection
- **IP Whitelisting** - Admin access restrictions
 
### Monitoring & Logging
 
```typescript
// Security monitoring
interface SecurityMonitoring {
  access_logs: {
    retention: '90 days'
    includes: ['IP', 'user_agent', 'endpoint', 'response_code']
    excludes: ['personal_data', 'story_content']
  }
  security_events: {
    failed_logins: 'alert after 5 attempts'
    suspicious_activity: 'immediate alert'
    data_access: 'audit trail maintained'
  }
  compliance_reporting: {
    gdpr_requests: 'tracked and reported'
    data_breaches: 'immediate notification'
    access_reviews: 'quarterly'
  }
}
``` -->
 
### Backup & Recovery
 
- **Automated Backups** - Daily encrypted backups
- **Geographic Distribution** - Backups stored in multiple regions
- **Point-in-Time Recovery** - Restore to any point in last 30 days
- **Disaster Recovery** - RTO: 4 hours, RPO: 1 hour
 
## Application Security
 
### Input Validation & Sanitization
 
```typescript
// Input validation example
interface StoryValidation {
  title: {
    max_length: 200
    required: true
    sanitize: 'html_escape'
  }
  content: {
    max_length: 50000
    required: true
    sanitize: 'html_purify'
    allowed_tags: ['p', 'br', 'strong', 'em', 'ul', 'ol', 'li']
  }
  photos: {
    max_count: 10
    max_size: '5MB'
    allowed_types: ['image/jpeg', 'image/png', 'image/webp']
    virus_scan: true
  }
}
``` -->
 
### SQL Injection Prevention
 
- **Parameterized Queries** - All database queries use parameters
- **ORM Protection** - Supabase client prevents SQL injection
- **Input Validation** - All user input validated and sanitized
- **Least Privilege** - Database users have minimal required permissions
 
### Cross-Site Scripting (XSS) Prevention
 
```typescript
// XSS protection measures
const securityHeaders = {
  'Content-Security-Policy':
    "default-src 'self'; script-src 'self' 'unsafe-inline'",
  'X-Frame-Options': 'DENY',
  'X-Content-Type-Options': 'nosniff',
  'Referrer-Policy': 'strict-origin-when-cross-origin',
  'Permissions-Policy': 'camera=(), microphone=(), geolocation=()',
}
``` -->
 
### File Upload Security
 
- **File Type Validation** - Only allowed file types accepted
- **Size Limits** - Maximum file size enforced
- **Virus Scanning** - All uploads scanned for malware
- **Content Validation** - File headers verified
- **Secure Storage** - Files stored with restricted access
 
## API Security
 
### Rate Limiting
 
```typescript
// API rate limits
const rateLimits = {
  authentication: '5 requests per minute',
  story_creation: '10 requests per minute',
  file_upload: '20 requests per hour',
  family_invites: '5 requests per hour',
  general_api: '100 requests per minute',
}
``` -->
 
### API Key Management
 
- **JWT Tokens** - Secure, stateless authentication tokens
- **Token Expiration** - Automatic token expiry (24 hours)
- **Refresh Tokens** - Secure token renewal process
- **Token Revocation** - Immediate token invalidation on logout
 
### CORS Configuration
 
```typescript
// Cross-Origin Resource Sharing
const corsConfig = {
  origin: [
    'https://app.mystoryflow.com',
    'https://mystoryflow.com',
    'http://localhost:3000', // Development only
  ],
  credentials: true,
  methods: ['GET', 'POST', 'PUT', 'DELETE'],
  allowedHeaders: ['Content-Type', 'Authorization'],
}
``` -->
 
## Incident Response
 
### Security Incident Response Plan
 
1. **Detection** - Automated monitoring and manual reporting
2. **Assessment** - Severity classification and impact analysis
3. **Containment** - Immediate steps to limit damage
4. **Investigation** - Root cause analysis and evidence collection
5. **Recovery** - System restoration and security improvements
6. **Communication** - User notification and regulatory reporting
 
### Data Breach Response
 
```typescript
interface DataBreachResponse {
  immediate_actions: [
    'Contain the breach',
    'Assess the scope',
    'Preserve evidence',
    'Notify security team',
  ]
  within_24_hours: [
    'Notify affected users',
    'Report to authorities (if required)',
    'Implement additional security measures',
    'Begin forensic investigation',
  ]
  within_72_hours: [
    'Submit regulatory notifications',
    'Provide detailed user communications',
    'Implement long-term fixes',
    'Conduct security review',
  ]
}
``` -->
 
## Security Best Practices
 
### For Users
 
- **Strong Passwords** - Use unique, complex passwords
- **Enable 2FA** - Add multi-factor authentication
- **Regular Reviews** - Review family member access periodically
- **Secure Devices** - Keep devices updated and secure
- **Report Issues** - Report suspicious activity immediately
 
### For Developers
 
```typescript
// Secure coding practices
const securityGuidelines = {
  authentication: 'Always verify user identity',
  authorization: 'Check permissions for every action',
  input_validation: 'Validate and sanitize all input',
  error_handling: 'Never expose sensitive information',
  logging: 'Log security events without personal data',
  dependencies: 'Keep all dependencies updated',
  secrets: 'Never commit secrets to version control',
}
``` -->
 
### Environment Security
 
```bash
# Environment variable security
SUPABASE_KEY=sb_***         # Service role key (server-side only)
SUPABASE_ANON_KEY=sb_***    # Anonymous key (client-side safe)
JWT_SECRET=***              # Strong random secret
ENCRYPTION_KEY=***          # AES-256 encryption key
DATABASE_URL=***            # Connection string with SSL
``` -->
 
## Compliance & Auditing
 
### Regular Security Audits
 
- **Quarterly Internal Audits** - Comprehensive security reviews
- **Annual External Audits** - Third-party security assessments
- **Penetration Testing** - Simulated attacks to identify vulnerabilities
- **Code Security Reviews** - Static and dynamic analysis
 
### Compliance Monitoring
 
```typescript
interface ComplianceChecks {
  gdpr_compliance: {
    data_processing_records: 'maintained'
    consent_management: 'documented'
    data_subject_rights: 'implemented'
    privacy_impact_assessments: 'completed'
  }
  security_standards: {
    access_controls: 'reviewed monthly'
    encryption_standards: 'verified quarterly'
    incident_procedures: 'tested annually'
    employee_training: 'completed annually'
  }
}
``` -->
 
### Audit Trail
 
- **User Actions** - All user actions logged (without personal data)
- **System Access** - Administrator access tracked
- **Data Changes** - Database changes audited
- **Security Events** - All security-related events recorded
 
## Contact & Reporting
 
### Security Contact
 
- **Email**: security@mystoryflow.com
- **Response Time**: 24 hours for critical issues
- **PGP Key**: Available on request for sensitive communications
 
### Vulnerability Reporting
 
We welcome responsible disclosure of security vulnerabilities:
 
1. **Email**: security@mystoryflow.com with details
2. **Include**: Steps to reproduce, potential impact
3. **Response**: Acknowledgment within 24 hours
4. **Resolution**: Fix deployed within 30 days (critical issues: 7 days)
 
### Bug Bounty Program
 
- **Scope**: All MyStoryFlow applications and APIs
- **Rewards**: $100-$5000 based on severity
- **Rules**: Responsible disclosure, no data access/modification
 
---
 
## Security Updates
 
Stay informed about security updates:
 
- **Security Newsletter**: Monthly security updates
- **Status Page**: Real-time security status
- **Release Notes**: Security fixes documented
 
For more information about our security practices, contact our security team at security@mystoryflow.com.