The Security Perimeter: Defending Against the OWASP Top 10

Security is not a feature; it is a fundamental property of your system's architecture.

Injection & Cross-Site Scripting (XSS)

Never trust user input. Use parameterized queries for your database and sanitize every string that is rendered in the UI. Modern frameworks like React help prevent XSS by default, but you must still be cautious with dangerouslySetInnerHTML.

Broken Access Control

Implement a 'Least Privilege' model. Users should only have access to the specific data they need to perform their role. Audit your middleware and API routes regularly to ensure no private data is leaking.

Zero Trust Architecture

The old 'Perimeter Security' (VPNs) is dead. Zero Trust assumes the network is already compromised. Every request must be authenticated, authorized, and encrypted, regardless of whether it comes from inside or outside the firewall.