Security Term

Web Application Firewall (WAF)

A security solution that filters, monitors, and blocks HTTP traffic to and from a web application to protect against common web exploits.

What is Web Application Firewall (WAF)?

WAFs protect against attacks such as SQL injection, XSS, CSRF, and DDoS by inspecting HTTP requests against rule sets. They can be deployed as hardware appliances, software modules, or cloud services. WAFs are a compensating control but should not replace secure coding practices or regular vulnerability scanning.

Understanding this concept is crucial for maintaining a robust security posture. In the context of modern cyber threats, web application firewall (waf) represents a significant area of focus for security professionals and organizations alike.