Product

Microsoft Defender for IoT

Track documentation and Message Center changes for Microsoft Defender for IoT.

Microsoft Learn documentation ↗

Latest Microsoft Defender for IoT changes

Accelerate OT alert workflows - Microsoft Defender for IoT

Incidents and response

The page now highlights required Azure portal permissions or OT sensor access, clarifies migration guidance for alert exclusion rules, and warns that deleting custom alert rules is irreversible. Links and wording were also updated.

Audit Microsoft Defender for IoT user activity

General

The article now separates prerequisites and states that users must be default privileged admins or have the Admin role on the sensor. Setup wording for Azure portal and OT network sensors was also streamlined.

Configure a Micro Agent T#### win

General

Updated the article title, date, metadata, formatting, and terminology for configuration status and failure reporting.

Configure and Customize Defender-IoT-micro-agent for Eclipse ThreadX

General

The page clarifies distribution-file selection, CMake and IAR build instructions, configuration-setting descriptions, network activity collection, Log Analytics guidance, and related-content links. The security alerts and API links are now marked as preview.

Control the OT traffic monitored by Microsoft Defender for IoT

General

The article now uses clearer terminology and navigation for the OT sensor deployment path, subnet configuration, ICS subnet definition, port and VLAN naming, DNS lookup, and DHCP procedures. Metadata and section formatting were also updated.

Create and manage Users on an OT Network Sensor

Identity protection

The article now clearly covers creating, editing, and removing sensor users, Active Directory integration, and privileged-access recovery. Prerequisites are presented as notes, and headings, links, metadata, and related-content formatting were updated.

Create Custom Alerts

General

The guide updates capitalization, phrasing, drop-down terminology, the Save button label, and changes the “Next steps” heading to “Related content.”

Create trends and statistics reports in Defender for IoT

General

The page now clarifies the role-requirements link, renames “Next steps” to “Related content,” and revises wording for cloud-connected sensor reports. The same related report links remain available, with metadata also updated.

Device Inventory

General

The documentation now describes Vendor as the device’s hardware vendor, as identified from the MAC address.

Enterprise Iot Manage

General

The article now refers to Microsoft 365 E5 or E5 Security plans, clarifies that disabling enterprise IoT security removes access to alerts, vulnerabilities, and recommendations, and updates the standalone-license link text.

Get Started

Fundamentals

The page’s `ms.custom` metadata changed from `msecd-doc-authoring-1013` to `msecd-doc-authoring-1016`.

Get started with enterprise IoT

Fundamentals

The page now tells administrators to assign obtained licenses to specific users before using them. It also clarifies that the device count refers to identified unique devices; metadata was updated.

How to configure the DMI Decoder

General

The article now provides clearer descriptions of SMBIOS requirements, renamed configuration sections, stable anchors, corrected module twin JSON formatting, and reorganized related links.

Import extra data for detected OT devices - Microsoft Defender for IoT

Identity protection

The article now clarifies the OT sensor prerequisite, adds the need for a CSV-capable editor, restructures the import steps, updates terminology, and specifies that devices omitted from an authorized-devices import are marked not authorized and can generate new traffic alerts.

Install Defender for IoT Micro Agent for Microsoft Edge

General

The article now has clearer installation wording, reordered repository setup commands, and updated guidance that the baseline validation failure recommendation may take up to one hour to appear in IoT Hub.

Investigate CIS benchmark recommendation

General

The article’s publication date changed from June 12 to July 3, 2026, and its custom authoring metadata was updated. The supplied content excerpt is unchanged.

Investigate Devices in the OT Sensor Device Map

Identity protection

The article now highlights prerequisites, including an activated sensor and required permissions, and warns that deleting a device permanently removes it from inventory. It also refreshes wording and navigation labels throughout the device map and notification guidance.

Investigate incidents and alerts

General

The page refreshes metadata and clarifies how to investigate Defender for IoT incidents, use the DeviceInfo Site property in advanced hunting, and interpret the San Francisco site query.

Manage EIoT monitoring support | Microsoft Defender for IoT

General

The page adds guidance for calculating detected devices for standalone licensing and warns that disabling Enterprise IoT security stops all purpose-built alerts, vulnerabilities, and recommendations. It also clarifies cancellation steps for legacy plan customers.

Manage IoT and OT Devices with the Cloud Device Inventory

General

The article was refreshed with clearer wording, updated terminology and capitalization, improved formatting of UI labels, and revised instructions for filtering, exporting, and identifying devices that have not recently communicated.

Manage OT Plans and Licenses

General

The migration guidance now explicitly instructs administrators to select Microsoft 365 as the price plan, save the change, and then update site details to match the license. Wording, metadata, and related-content labeling were also updated.

Manage sites in Microsoft Defender for IoT

General

The article title, metadata, and introductory wording were updated. The site assignment instructions now clarify that a manual site assignment remains until the device is reset, while automatic reassignment is prevented.

Manage your OT device inventory from a sensor console

Identity protection

The article now describes viewing, filtering, editing, exporting, merging duplicate devices, and deleting inactive devices. It also clarifies that deletion applies to devices matching the current Last Activity filter and updates export time-zone guidance.

Microsoft Defender for IoT alerts

General

The article now includes an overview of viewing, investigating, and managing alerts across supported locations, with clearer terminology, navigation links, synchronization wording, and remediation references.

Microsoft Defender for IoT Feature Support and Retirement

General

The page now uses clearer terminology for the legacy and replacement micro agents, presents tutorial links as a list, and renames the final section to “Related content.” Support and retirement wording remains included.

Ot Deploy Path

Architecture and deployment

The guide changes the “Next steps” heading to “Next step” and removes the sentence beneath it.

Provision OT Sensors for Cloud Management

Identity protection

The article’s title, metadata, role-prerequisite wording, connectivity-team responsibilities, direct-connection context, and endpoint-download heading were revised.

Request

Identity protection

The documentation standardizes table separators, uses a dash for the empty vendor description cell, and updates the details field guidance and link.

Review Security Initiatives

General

The page metadata, wording, heading, anchor, and OT Security prerequisite guidance were updated. The review section is now titled “Review OT and Enterprise IoT security initiatives in the Defender portal.”

Set Up Rbac

General

The Defender for IoT RBAC setup article now directs readers to review prerequisites before configuring roles and permissions. Its metadata was also updated.

Set up Single Sign-on for Microsoft Defender for IoT Sensor Console

Identity protection

The Defender for IoT SSO article now identifies Microsoft Graph User.Read as the required permission and states that an administrator must grant tenant-wide consent. Wording, headings, metadata, and related-content formatting were also updated.

Set up sites in Microsoft Defender for IoT

General

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.

Set Up SNMP MIB Monitoring on an OT Sensor

Identity protection

The guide now instructs administrators to access the Defender for IoT CLI over SSH as the cyberx user before setup. It also expands encryption names and updates related guidance.

Set up traffic mirroring - Defender for IoT

Identity protection

The documentation now expands L2 as Layer 2, clarifies the Wireshark validation wording, and updates the link text for validating traffic mirroring.

Troubleshoot the Sensor

Troubleshooting

The page title changed from “Troubleshoot the sensor” to “Troubleshoot the Sensor,” and the “Next steps” heading was renamed “Related content.”

Tutorial Servicenow

General

The tutorial replaces the “Next steps” section and ServiceNow Store access line with “Related content” and a “Next step” heading.

Tutorial Splunk

General

The tutorial removes bold formatting from the Splunk access instruction and changes “Next steps” to “Next step.”

Upgrade the Microsoft Defender for IoT Micro Agent

General

The page title capitalization was updated, and the Standalone micro agent and Micro agent for Edge labels were reformatted as section headings. A resource-introduction line was removed.

Verify and Update Detected Device Inventory

Identity protection

The page received updated metadata and wording, a new sentence introducing the device-inventory viewing steps, and clearer headings and text for editing individual device properties.

View and Manage Alerts on the Azure Portal

General

The article adds clearer navigation for viewing alerts, a considerations section, refreshed grouping-option formatting, and minor wording, punctuation, metadata, and title updates.

View and Manage Alerts on your OT Sensor

Identity protection

The page title and metadata were updated, and alert-viewing, management, and export instructions were reformatted with clearer step numbering and wording.

Billing

General

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/billing.md.

Configure a micro agent twin

General

Updated Microsoft Defender documentation in defender-for-iot-azure/device-builders/how-to-configure-micro-agent-twin.md.

Configure Sensor Settings Portal

Identity protection

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/configure-sensor-settings-portal.md.

Create custom alerts

General

Updated Microsoft Defender documentation in defender-for-iot-azure/device-builders/quickstart-create-custom-alerts.md.

Device Inventory

General

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/device-inventory.md.

Eiot Defender For Endpoint

Endpoint protection

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/eiot-defender-for-endpoint.md.

Enterprise

Identity protection

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/concept-enterprise.md.

Manage Sensors On The Cloud

Identity protection

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/how-to-manage-sensors-on-the-cloud.md.

Manage Subscriptions

General

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/how-to-manage-subscriptions.md.

Manage Subscriptions Enterprise

General

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/manage-subscriptions-enterprise.md.

Microsoft Defender Iot

General

Updated Microsoft Defender documentation in defender-for-iot/microsoft-defender-iot.md.

Ot Deploy Path

Architecture and deployment

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/ot-deploy/ot-deploy-path.md.

Overview

Endpoint protection

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/overview.md.

Plan Corporate Monitoring

Architecture and deployment

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/best-practices/plan-corporate-monitoring.md.

Prerequisites

General

Updated Microsoft Defender documentation in defender-for-iot/prerequisites.md.

References Data Retention

General

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/references-data-retention.md.

Release Notes

General

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/release-notes.md.

Set Up Rbac

General

Updated Microsoft Defender documentation in defender-for-iot/set-up-rbac.md.

Set Up Sites

General

Updated Microsoft Defender documentation in defender-for-iot/set-up-sites.md.

Whats New

General

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/whats-new.md.

Whats New Archive

General

Updated Microsoft Defender documentation in defender-for-iot-azure/organizations/whats-new-archive.md.