Application-Level Security

1. Input Validation: All user inputs are validated and sanitized
2. Output Encoding: All outputs are properly encoded to prevent injection attacks
3. Session Security: Secure session management with encrypted session tokens
4. Authentication: Strong authentication mechanisms with optional MFA

Database-Level Security

1. Connection Encryption: Database connections are encrypted
2. Query Parameterization: All database queries use parameterized statements
3. Access Controls: Database access is restricted to authorized application components
4. Audit Logging: All database operations are logged for security auditing

Infrastructure Security

1. Network Segmentation: Network-level isolation between components
2. Firewall Rules: Strict firewall rules control network access
3. Intrusion Detection: Monitoring for suspicious network activity
4. DDoS Protection: Protection against distributed denial-of-service attacks