Update articles/security/fundamentals/pen-testing.md

Author: ShannonLeavitt

articles/security/fundamentals/pen-testing.md

@@ -27,7 +27,7 @@ We don’t perform penetration testing of your application for you, but we do un
 As of June 15, 2017, Microsoft no longer requires pre-approval to conduct a penetration test against Azure resources. This process is only related to Microsoft Azure, and not applicable to any other Microsoft Cloud Service.
 
 >[!IMPORTANT]
->While notifying Microsoft of pen testing activities is no longer required customers must still comply with the [Microsoft Cloud Unified Penetration Testing Rules of Engagement](https://www.microsoft.com/en-us/msrc/pentest-rules-of-engagement).
+>While notifying Microsoft of pen testing activities is no longer required customers must still comply with the [Microsoft Cloud Unified Penetration Testing Rules of Engagement](https://www.microsoft.com/msrc/pentest-rules-of-engagement).
 
 Standard tests you can perform include: