Respond to Microsoft Defender for DNS alerts
In brief
The page date and authoring metadata were updated. The unexpected-activity guidance now links to “Mitigate the alert,” and the “Next step” section was renamed “Next steps” with an anchor added.
What Defender admins need to know
Administrators can navigate directly from an alert to the relevant mitigation guidance; no action is required.
Summaries are generated from the documentation change itself.
Documentation change
The comparison below shows only the changed extract. Use the full-page view for complete context.
- Contact the resource owner to determine whether the behavior was expected or intentional.
- If the activity is expected, dismiss the alert.
- If the activity is unexpected, treat the resource as potentially compromised and follow the mitigation steps in
the next section.Mitigate the alert.
Mitigate the alert
- Send alerts in real time to Log Analytics or Event Hubs to build automated response processes. For steps, see Configure continuous export.
Next stepsteps
[!div class="nextstepaction"] Manage security alerts
@@ -1,8 +1,9 @@ --- title: Respond to Microsoft Defender for DNS alerts description: Learn best practices for responding to alerts that indicate security risks in DNS services.-ms.date: 05/25/2026+ms.date: 07/03/2026 ms.topic: how-to+ms.custom: msecd-doc-authoring-1013 #customer intent: As a security administrator, I want to respond to Microsoft Defender for DNS alerts so that I can investigate suspicious DNS activity and contain potential compromises. ai-usage: ai-assisted ---@@ -23,7 +24,7 @@ Depending on the alert, the resource owner may be the user, application, or serv 1. Contact the resource owner to determine whether the behavior was expected or intentional. 1. If the activity is expected, dismiss the alert.-1. If the activity is unexpected, treat the resource as potentially compromised and follow the mitigation steps in the next section.+1. If the activity is unexpected, treat the resource as potentially compromised and follow the mitigation steps in [Mitigate the alert](#mitigate-the-alert). ## Mitigate the alert @@ -41,7 +42,8 @@ If the resource owner confirms that the activity is unexpected, mitigate the ale - Send alerts in real time to Log Analytics or Event Hubs to build automated response processes. For steps, see [Configure continuous export](continuous-export.md). -## Next step+<a name="next-step"></a>+## Next steps > [!div class="nextstepaction"] > [Manage security alerts](manage-respond-alerts.md) 