Web Application Firewall

Normal Behavior

A specific form of application firewall that filters, monitors, and blocks HTTP traffic to and from a web service.

Failure Behavior

May drop requests or fallback to degraded mode under load.

Business Consequence

A misconfigured Web Application Firewall (WAF) can trigger catastrophic false positives, blocking legitimate checkout requests, API calls, and premium customer traffic due to overly aggressive signature matching. This self-inflicted denial-of-service attack directly chokes top-line revenue, damages brand reputation, and prevents real users from completing their business transactions.

Visual Manifestation

"Legitimate customers being slapped with a generic white '403 Forbidden - Request Blocked by Security Rules' screen during checkout."

Satirical Behavior

"An expensive regex engine that completely ignores zero-day exploits while valiantly blocking your most important customer from updating their own profile."

Known Aliases

Technical Terminology

Failure Indicators