---
slug: "azure-defender-for-iot-ot-security-retirement"
title: "Microsoft Defender for IoT: OT security retirement"
summary: "Retirement date for the operational technology (OT) security component of Microsoft Defender for IoT: Oct 2029. Customers of Defender for IoT OT Security need to move to an alternative OT security solution before retirement."
cloud: "azure"
service: "Microsoft Defender for IoT"
service_slug: "defender-for-iot"
category: "feature"
type: "retirement"
announced_date: "2026-11-02"
effective_date: "2029-10-01"
effective_precision: "month"
replacement: null
affected_versions: []
source_url: "https://azure.microsoft.com/updates?id=576255"
extra_source_urls: ["https://learn.microsoft.com/en-us/security-exposure-management/ot-data-connectors","https://learn.microsoft.com/en-us/security-exposure-management/overview-data-connectors","https://learn.microsoft.com/en-us/defender-for-iot/enterprise-iot"]
vendor_ref: "576255"
last_checked_at: "2026-11-12T09:55:19.345Z"
created_at: "2026-11-13T13:36:44.208Z"
updated_at: "2026-11-13T13:36:44.208Z"
url: "https://eolwatch.dev/items/azure-defender-for-iot-ot-security-retirement"
short_url: "https://eolwatch.dev/i/cx"
markdown_url: "https://eolwatch.dev/items/azure-defender-for-iot-ot-security-retirement.md"
json_url: "https://eolwatch.dev/items/azure-defender-for-iot-ot-security-retirement.json"
source_note: null
---

# Microsoft Defender for IoT: OT security retirement

Retirement date for the operational technology (OT) security component of Microsoft Defender for IoT: Oct 2029. Customers of Defender for IoT OT Security need to move to an alternative OT security solution before retirement.

- Effective date: Oct 2029 (month precision: the vendor gives no day)
- Cloud: [Azure](https://eolwatch.dev/cloud/azure.md)
- Service: [Microsoft Defender for IoT](https://eolwatch.dev/services/azure/defender-for-iot.md)
- Type: Retirement
- Category: [Feature](https://eolwatch.dev/categories/features.md)
- Replacement: Not stated by vendor
- Announced: 2 Nov 2026
- Official source: [azure.microsoft.com](https://azure.microsoft.com/updates?id=576255)
- Last checked: 12 Nov 2026

## What breaks

The operational technology (OT) security component of Microsoft Defender for IoT is fully deprecated at the retirement date, after a three-year transition period. The change applies only to Defender for IoT OT Security: Enterprise IoT capabilities in Microsoft Defender for Endpoint are not affected, and device discovery and vulnerability assessment continue to be available. During the transition the service stays supported with routine security updates and bug fixes, but it receives no new OT-specific capabilities or feature investments. Existing customer agreements and renewals are honored until the retirement date.

## What to do

1. Review existing OT deployments, sensors, integrations, licenses, contracts, and security requirements.
2. Select an alternative OT security solution. Microsoft offers connectors for Armis, Dragos, and Forescout, and does not require a specific provider. See [OT data connectors](https://learn.microsoft.com/en-us/security-exposure-management/ot-data-connectors).
3. Plan separate licensing and deployment for any third-party solution.
4. Build a transition plan that covers procurement, testing, operational validation, continuity, data export, and sensor decommissioning, with migration completed before the retirement date.
5. Contact OT security providers directly, or ask the Microsoft account team to help coordinate an introduction.

## Replacement

Not stated by vendor.

## Sources

- [Official source](https://azure.microsoft.com/updates?id=576255) (azure.microsoft.com, Official)
- [Additional source](https://learn.microsoft.com/en-us/security-exposure-management/ot-data-connectors) (learn.microsoft.com, Official)
- [Additional source](https://learn.microsoft.com/en-us/security-exposure-management/overview-data-connectors) (learn.microsoft.com, Official)
- [Additional source](https://learn.microsoft.com/en-us/defender-for-iot/enterprise-iot) (learn.microsoft.com, Official)

Last checked against the first source in this list on 12 Nov 2026.

Page: https://eolwatch.dev/items/azure-defender-for-iot-ot-security-retirement | JSON: https://eolwatch.dev/items/azure-defender-for-iot-ot-security-retirement.json

The text on this page is drafted with AI assistance from the vendor's text, checked against the official source and approved by a person before it is published.