Message CenterMajor changeAdmin impactRetirement

MC1141957 — Upcoming Retirement of Sub-Domains Feature in Defender for Cloud Apps – Cloud Discovery

MC1141957Microsoft Defender XDRplanForChangeUpdated: 25 August 2025

The sub-domains feature in Microsoft Defender for Cloud Apps – Cloud Discovery will be retired starting September 22, 2025, and fully deprecated by December 31, 2025, due to low usage. No admin action is needed, but sub-domain insights will no longer be available after deprecation.

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Applies to: Microsoft Defender XDR
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).