Merge pull request #298966 from gunjanj/patch-553220

Add AFD service-tags-overview Microosft.Security

Author: prmerger-automator[bot]

articles/virtual-network/service-tags-overview.md

@@ -65,7 +65,7 @@ By default, service tags reflect the ranges for the entire cloud. Some service t
 | **[AzureDevOps](/azure/devops/organizations/security/allow-list-ip-url)** | Azure DevOps. | Inbound | Yes | Yes |
 | **[AzureDigitalTwins](/azure/digital-twins/concepts-security#service-tags)** | Azure Digital Twins.<br/><br/>**Note**: This tag or the IP addresses covered by this tag can be used to restrict access to endpoints configured for event routes. | Inbound | No | Yes |
 | **[AzureEventGrid](/azure/event-grid/network-security#service-tags    )** | Azure Event Grid. | Both | No | Yes |
-| **[AzureFrontDoor.Frontend](/azure/frontdoor/origin-security)** <br/> **[AzureFrontDoor.Backend](/azure/frontdoor/origin-security)** <br/> **[AzureFrontDoor.FirstParty](/azure/frontdoor/origin-security)**  | *Frontend* service tag contains the IP addresses that clients use to reach Front Door. You can apply the **AzureFrontDoor.Frontend** service tag when you want to control the outbound traffic that can connect to services behind Azure Front Door. *Backend* service tag contains the IP addresses that Azure Front Door uses to access your origins. You can apply this service tag when you [configure security for your origins](../frontdoor/origin-security.md). *FirstParty* is a special tag reserved for a select group of Microsoft services hosted on Azure Front Door. | Both | Yes | Yes |
+| **[AzureFrontDoor.Frontend](/azure/frontdoor/origin-security)** <br/> **[AzureFrontDoor.Backend](/azure/frontdoor/origin-security)** <br/> **[AzureFrontDoor.FirstParty](/azure/frontdoor/origin-security)** <br/> **[AzureFrontDoor.MicrosoftSecurity](/azure/frontdoor/origin-security)**  | *Frontend* service tag contains the IP addresses that clients use to reach Front Door. You can apply the **AzureFrontDoor.Frontend** service tag when you want to control the outbound traffic that can connect to services behind Azure Front Door. *Backend* service tag contains the IP addresses that Azure Front Door uses to access your origins. You can apply this service tag when you [configure security for your origins](../frontdoor/origin-security.md). *FirstParty* and *MicrosoftSecurity* are special tags reserved for a select group of Microsoft services hosted on Azure Front Door. | Both | Yes | Yes |
 | **[AzureHealthcareAPIs](/azure/healthcare-apis/fhir/configure-import-data)**  | The IP addresses covered by this tag can be used to restrict access to Azure Health Data Services. | Both | No | Yes |
 | **AzureInformationProtection** | Azure Information Protection.<br/><br/>**Note**: This tag has a dependency on the **AzureActiveDirectory**, **AzureFrontDoor.Frontend** and **AzureFrontDoor.FirstParty** tags. | Outbound | No | Yes |
 | **AzureIoTHub** | Azure IoT Hub. | Outbound | Yes | Yes |