Microsoft Defender for IoT
GeneralSet up sites in Microsoft Defender for IoT
In brief
The article now links to prerequisites and recommends having the IP or MAC address of at least one OT device discovered by Microsoft Defender for Endpoint before associating devices with a site. Minor wording and metadata were also updated.
What Defender admins need to know
Administrators can prepare the required device details in advance to streamline site setup.
Summaries are generated from the documentation change itself.
Documentation change
View on Microsoft LearnThe comparison below shows only the changed extract. Use the full-page view for complete context.
Set up sites in Microsoft Defender for IoT
Microsoft Defender for IoT in the Microsoft Defender portal includes the Site security page, which offers an overview of the security state of your entire operational technology (OT) environment. Your organization's security team use this page to regularly monitor the security status of your production sites.
In this article, you learn how to set up a site in the Site security page. Before you begin, make sure you meet the prerequisites.
Learn more about the site security benefits and use cases.
Before you create a site, make sure you meet the following prerequisites:
- We recommend you have IP or MAC address details of at least one OT device at the site that is discovered by Microsoft Defender for Endpoint. You need these details when you associate devices with the site.
- Review the general prerequisites for Microsoft Defender for IoT.
- Review the required site security permissions according to RBAC requirements.
- Have a Microsoft Defender for IoT license. For more information, see Get started with Defender for IoT.
Associate devices with a site
In this stage, you configure Defender for IoT to associate devices to the site, so itDefender for IoT can correctly identify and associate all types of devices at the same site.
Preview devices before assigning them to a site
In this stage, you review all of the devices discovered by the system.Defender for IoT. This gives admins the opportunity to review and remove devices before confirming the site creation. A list of all devices to be associated with this site is displayed.
To manage devices in bulk, use the search bar to find devices by their name, IP, or MAC address.
@@ -5,17 +5,17 @@ ms.service: defender-for-iot author: limwainstein ms.author: lwainstein ms.localizationpriority: medium-ms.date: 06/11/2026+ms.date: 07/02/2026 ms.topic: how-to ai-usage: ai-assisted-ms.custom: msecd-doc-authoring-1013+ms.custom: msecd-doc-authoring-1016 --- # Set up sites in Microsoft Defender for IoT Microsoft Defender for IoT in the Microsoft Defender portal includes the **Site security** page, which offers an overview of the security state of your entire operational technology (OT) environment. Your organization's security team use this page to regularly monitor the security status of your production sites. -In this article, you learn how to set up a site in the **Site security** page.+In this article, you learn how to set up a site in the **Site security** page. Before you begin, make sure you meet the [prerequisites](#prerequisites). Learn more about the [site security benefits and use cases](site-security-overview.md). @@ -25,6 +25,7 @@ Learn more about the [site security benefits and use cases](site-security-overvi Before you create a site, make sure you meet the following prerequisites: +- We recommend you have IP or MAC address details of at least one OT device at the site that is discovered by Microsoft Defender for Endpoint. You need these details when you associate devices with the site. - Review [the general prerequisites for Microsoft Defender for IoT](prerequisites.md). - Review the required site security permissions according to [RBAC requirements](set-up-rbac.md). - Have a Microsoft Defender for IoT license. For more information, see [Get started with Defender for IoT](get-started.md).@@ -50,7 +51,7 @@ To set up a site and associate the OT devices in your network to it: <a name="associate-devices"></a> ## Associate devices with a site -In this stage, you configure Defender for IoT to associate devices to the site, so it can correctly identify and associate all types of devices at the same site.+In this stage, you configure Defender for IoT to associate devices to the site, so Defender for IoT can correctly identify and associate all types of devices at the same site. 1. In the search bar, type either: - A public IP address@@ -82,7 +83,7 @@ In this stage, you configure Defender for IoT to associate devices to the site, <a name="preview-devices"></a> ## Preview devices before assigning them to a site -In this stage, you review all of the devices discovered by the system. This gives admins the opportunity to review and remove devices before confirming the site creation. A list of all devices to be associated with this site is displayed.+In this stage, you review all of the devices discovered by Defender for IoT. This gives admins the opportunity to review and remove devices before confirming the site creation. A list of all devices to be associated with this site is displayed. To manage devices in bulk, use the search bar to find devices by their name, IP, or MAC address.