Defender for Identity security alerts in Microsoft 365 Defender

This article explains the basics of how to work with Microsoft Defender for Identity security alerts in Microsoft 365 Defender.

Defender for Identity alerts are natively integrated into Microsoft 365 Defender with a dedicated Identity alert page format.

The Identity alert page gives Microsoft Defender for Identity customers better cross-domain signal enrichment and new automated identity response capabilities. It ensures that you stay secure and helps improve the efficiency of your security operations.

One of the benefits of investigating alerts through Microsoft 365 Defender is that Microsoft Defender for Identity alerts are further correlated with information obtained from each of the other products in the suite. These enhanced alerts are consistent with the other Microsoft 365 Defender alert formats originating from Microsoft Defender for Office 365 and Microsoft Defender for Endpoint. The new page effectively eliminates the need to navigate to another product portal to investigate alerts associated with identity.

Alerts originating from Defender for Identity can now trigger the Microsoft 365 Defender automated investigation and response (AIR) capabilities, including automatically remediating alerts and the mitigation of tools and processes that can contribute to the suspicious activity.

Important

As part of the convergence with Microsoft 365 Defender, some options and details have changed from their location in the Defender for Identity portal. Please read the details below to discover where to find both the familiar and new features.

Review security alerts

Alerts can be accessed from multiple locations, including the Alerts page, the Incidents page, the pages of individual Devices, and from the Advanced hunting page. In this example, we'll review the Alerts page.

In Microsoft 365 Defender, go to Incidents & alerts and then to Alerts.

The Alerts menu item

To see alerts from Defender for Identity, on the top-right select Filter, and then under Service sources select Microsoft Defender for Identity, and select Apply:

The filter for the Defender for Identity events

The alerts are displayed with information in the following columns: Alert name, Tags, Severity, Investigation state, Status, Category, Detection source, Impacted assets, First activity, and Last activity.

The Defender for Identity events

Security alert categories

Defender for Identity security alerts are divided into the following categories or phases, like the phases seen in a typical cyber-attack kill chain.

Manage alerts

If you click the Alert name for one of the alerts, you'll go to the page with details about the alert. In the left pane, you'll see a summary of What happened:

The What happened pane

Above the What happened box are buttons for the Accounts, Destination Host and Source Host of the alert. For other alerts, you might see buttons for details about additional hosts, accounts, IP addresses, domains, and security groups. Select any of them to get more details about the entities involved.

On the right pane, you'll see the Alert details. Here you can see more details and perform several tasks:

  • Classify this alert - Here you can designate this alert as a True alert or False alert

    The page on which you can classify an alert

  • Alert state - In Set Classification, you can classify the alert as True or False. In Assigned to, you can assign the alert to yourself or unassign it.

    The Alert state pane

  • Alert details - Under Alert details, you can find more information about the specific alert, follow a link to documentation about the type of alert, see which incident the alert is associated with, review any automated investigations linked to this alert type, and see the impacted devices and users.

    The Alert details page

  • Comments & history - Here you can add your comments to the alert, and see the history of all actions associated with the alert.

    The Comments & history page

  • Manage alert - If you select Manage alert, you'll go to a pane that will allow you to edit the:

    • Status - You can choose New, Resolved or In progress.

    • Classification - You can choose True alert or False alert.

    • Comment - You can add a comment about the alert.

      If you select the three dots next to Manage alert, you can Consult a threat expert, Export the alert to an Excel file, or Link to another incident.

      The Manage alert option

      Note

      In the Excel file, you now have two links available: View in Microsoft Defender for Identity and View in Microsoft 365 Defender. Each link will bring you to the relevant portal, and provide information about the alert there.

See also

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