Minky takes security seriously and implements multiple layers of protection to ensure the safety of user data and prevent common web vulnerabilities.

• JWT-based Authentication: Secure token-based authentication with configurable expiration
• Refresh Tokens: Long-lived refresh tokens for seamless user experience
• Password Security: Bcrypt hashing with salt for secure password storage
• Role-based Access Control: Users can only access and modify their own documents
• Optional Authentication: Public documents accessible without authentication

• XSS Prevention: All user inputs are sanitized using the bleach library
• Email Validation: Proper email format validation using email-validator
• Password Complexity: Enforced password requirements (minimum length, letters, numbers)
• Username Validation: Alphanumeric usernames with underscores only

• SQL Injection Prevention: SQLAlchemy ORM with parameterized queries
• Connection Security: Secure database connections with environment-based configuration
• Data Validation: Server-side validation for all data inputs

• CORS Configuration: Properly configured Cross-Origin Resource Sharing
• Rate Limiting: Can be easily added via Flask-Limiter
• Input Size Limits: JSON payload size limitations
• HTTP Security Headers: Comprehensive security headers via nginx

• Environment Variables: Sensitive configuration stored in environment variables
• Docker Security: Non-root user in Docker containers
• Health Checks: Monitoring endpoints for system health
• Logging: Structured logging for security monitoring

The following security headers are implemented:

X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Referrer-Policy: no-referrer-when-downgrade
Content-Security-Policy: default-src 'self' http: https: data: blob: 'unsafe-inline'

If you discover a security vulnerability, please follow these steps:

1. Do not create a public GitHub issue
2. Send a detailed report to the project maintainers
3. Include steps to reproduce the vulnerability
4. Allow time for the issue to be addressed before public disclosure

Before deploying to production, ensure:

• Change all default secret keys in environment variables
• Use strong, unique passwords for database accounts
• Enable HTTPS/TLS encryption
• Configure firewall rules to restrict database access
• Regularly update dependencies for security patches
• Enable database backups with encryption
• Monitor application logs for suspicious activity
• Implement rate limiting on API endpoints
• Use a reverse proxy (nginx) with security headers
• Regularly rotate JWT secret keys

Regularly update dependencies to patch security vulnerabilities:

pip install --upgrade -r requirements.txt
npm audit fix  # For frontend dependencies

• Always validate and sanitize user inputs
• Use parameterized queries for database operations
• Implement proper error handling without exposing sensitive information
• Follow the principle of least privilege for user permissions
• Regularly review and update security measures

• Keep the system and dependencies up to date
• Monitor logs for suspicious activities
• Implement proper backup and disaster recovery procedures
• Use strong authentication methods
• Regularly audit user accounts and permissions

This application implements security measures that align with:

• OWASP Top 10 security risks mitigation
• Basic data protection principles
• Standard web application security practices