Best Practices for Secure Component Architecture
by Angela Fisher, Front-end Developer
1. Input Validation and Sanitization
Every component that handles user input should implement comprehensive validation and sanitization. This prevents common vulnerabilities like XSS attacks and injection attempts.
Components should validate input on both the client and server side, ensuring that malicious data cannot be processed. Clear error messages help users understand requirements without exposing system internals.
2. Authentication and Authorization
Components that access sensitive data should implement proper authentication and authorization checks. This includes verifying user permissions before displaying protected content.
Role-based access controls should be enforced at the component level, ensuring that users only see data they're authorized to access. Session management and token validation are critical for maintaining security.
3. Audit Logging and Monitoring
Sensitive components should implement comprehensive audit logging to track user actions and system events. This helps organizations meet compliance requirements and detect security incidents.
Log entries should include sufficient detail for investigation while avoiding exposure of sensitive data. Regular monitoring of component performance and security metrics helps identify potential issues before they become problems.