28/08/2026
Most companies have a firewall. Far fewer can answer a simpler question: what filters the traffic your web applications receive?
That is what a Web Application Firewall (WAF) does. It inspects HTTP requests at the application layer and blocks exploitation attempts, like injection and XSS, before they reach your code. And because every event is logged centrally, audits and incident response get easier too.
This carousel explains how it works in three steps: inspect, enforce, observe.
Full explainer in the first comment.