---
slug: "azure-defender-for-cloud-azure-china-21vianet-retirement"
title: "Microsoft Defender for Cloud: retirement in Azure operated by 21Vianet"
summary: "Retirement date for Microsoft Defender for Cloud in Microsoft Azure operated by 21Vianet (Azure in China): 18 Aug 2026. Microsoft announced the removal of all related features and services in that environment."
cloud: "azure"
service: "Microsoft Defender for Cloud"
service_slug: "defender-for-cloud"
category: "feature"
type: "retirement"
announced_date: "2025-08-20"
effective_date: "2026-08-18"
effective_precision: "day"
replacement: null
affected_versions: []
source_url: "https://azure.microsoft.com/updates?id=498749"
extra_source_urls: ["https://learn.microsoft.com/en-us/azure/china/overview-operations","https://aka.ms/MDC21Vdeprecationdocs"]
vendor_ref: "498749"
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-cloud-azure-china-21vianet-retirement"
short_url: "https://eolwatch.dev/i/4"
markdown_url: "https://eolwatch.dev/items/azure-defender-for-cloud-azure-china-21vianet-retirement.md"
json_url: "https://eolwatch.dev/items/azure-defender-for-cloud-azure-china-21vianet-retirement.json"
source_note: null
---

# Microsoft Defender for Cloud: retirement in Azure operated by 21Vianet

Retirement date for Microsoft Defender for Cloud in Microsoft Azure operated by 21Vianet (Azure in China): 18 Aug 2026. Microsoft announced the removal of all related features and services in that environment.

- Effective date: 18 Aug 2026
- Cloud: [Azure](https://eolwatch.dev/cloud/azure.md)
- Service: [Microsoft Defender for Cloud](https://eolwatch.dev/services/azure/defender-for-cloud.md)
- Type: Retirement
- Category: [Feature](https://eolwatch.dev/categories/features.md)
- Replacement: Not stated by vendor
- Announced: 20 Aug 2025
- Official source: [azure.microsoft.com](https://azure.microsoft.com/updates?id=498749)
- Last checked: 12 Nov 2026

## What breaks

Microsoft announced the retirement and removal of all features and services related to Microsoft Defender for Cloud within Microsoft Azure operated by 21Vianet, with the date 18 Aug 2026. After the retirement date, customers cannot access the Microsoft Defender for Cloud portal or any associated Microsoft Defender for Cloud services or features in that environment. The retirement applies to Microsoft Defender for Cloud within Microsoft Azure operated by 21Vianet, also known as Azure in China.

## What to do

Microsoft advises customers to work with their account representatives for Microsoft Azure operated by 21Vianet to assess the impact of the retirement on their operations in that environment. Further details are on [this documentation page](https://aka.ms/MDC21Vdeprecationdocs).

## Replacement

Not stated by vendor.

## Sources

- [Official source](https://azure.microsoft.com/updates?id=498749) (azure.microsoft.com, Official)
- [Additional source](https://learn.microsoft.com/en-us/azure/china/overview-operations) (learn.microsoft.com, Official)
- [Additional source](https://aka.ms/MDC21Vdeprecationdocs) (aka.ms, Official)

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

Page: https://eolwatch.dev/items/azure-defender-for-cloud-azure-china-21vianet-retirement | JSON: https://eolwatch.dev/items/azure-defender-for-cloud-azure-china-21vianet-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.