# Source: https://docs.datadoghq.com/security/default_rules/4af-ed1-fc0.md

---
title: Azure Frontdoor WAF Blocked a Request
description: Datadog, the leading service for cloud-scale monitoring.
breadcrumbs: Docs > Datadog Security > OOTB Rules > Azure Frontdoor WAF Blocked a Request
---

# Azure Frontdoor WAF Blocked a Request
Classification:attackTactic:[TA0001-initial-access](https://attack.mitre.org/tactics/TA0001)Technique:[T1190-exploit-public-facing-application](https://attack.mitre.org/techniques/T1190) 
## Goal{% #goal %}

Detect when an Azure Frontdoor Web Application Firewall (WAF) blocks a request from an IP address.

## Strategy{% #strategy %}

This rule monitors Azure Activity logs for Frontdoor Web Application Firewall logs and detects when the `@evt.name` has a value of `Microsoft.Network/FrontDoor/WebApplicationFirewallLog/Write` and `@properties.action` has a value of `Block`.

## Triage and response{% #triage-and-response %}

1. Inspect whether this request should have been blocked or not.
1. Navigate to the IP dashboard and inspect other requests this IP address has made.