add video

Author: vhorne

articles/web-application-firewall/overview.md

@@ -4,15 +4,17 @@ description: This article provides an overview of Azure Web Application Firewall
 services: web-application-firewall
 author: vhorne
 ms.service: web-application-firewall
-ms.date: 03/18/2020
-ms.author: victorh
+ms.date: 05/11/2021
+ms.author: victorh>
 ms.topic: overview
 ---
 
 # What is Azure Web Application Firewall?
 
 Web Application Firewall (WAF) provides centralized protection of your web applications from common exploits and vulnerabilities. Web applications are increasingly targeted by malicious attacks that exploit commonly known vulnerabilities. SQL injection and cross-site scripting are among the most common attacks.
 
+[!VIDEO https://www.microsoft.com/en-us/videoplayer/embed/RWCwkM]
+
 ![WAF overview](media/overview/wafoverview.png)
 
 Preventing such attacks in application code is challenging. It can require rigorous maintenance, patching, and monitoring at multiple layers of the application topology. A centralized web application firewall helps make security management much simpler. A WAF also gives application administrators better assurance of protection against threats and intrusions.