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GA

Built-in alert tuning rules are now generally available.

Built-in alert tuning rules are now generally available. Built-in alert tuning rules suppress alerts from common benign activity in Defender for Endpoint and Defender for Office 365 without affecting Automated Investigation and Response (AIR) investigations and email notifications.

Source last updated 2026-04-01

Affected: Microsoft Defender XDR, Defender for Endpoint, Defender for Office 365

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