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MC1388718 — Microsoft Defender for Endpoint: Update to Linux connectivity requirements with new service URLs to allowlist

MC1388718Microsoft Defender XDRplanForChangeUpdated: 12 June 2026

Microsoft Defender for Endpoint on Linux now requires allowlisting new service URLs specific to tenant types for delivering internal configuration updates, feature rollouts, and critical issue mitigations. This update is available worldwide, with no change to user experience, and ensures devices receive the latest features and optimizations.

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