Error: "Microsoft Defender ATP needs attention" after installing Microsoft Defender for Endpoint on your Mac


You receive the following message in Microsoft Defender for Endpoint on your Mac:

Microsoft Defender ATP needs attention.

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Apple requires that all new system extensions being installed from third-party developers in macOS be manually allowed.


1) Click Fix.

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2) In the bottom left-hand corner, click the lock icon.

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3) Authenticate using Touch ID or the username and password of an administrator on your Mac.

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4) In the left-hand pane, ensure that Full Disk Access is chosen. Then, check the boxes next to the following:

  • Microsoft Defender
  • Microsoft Defender ATP Endpoint Security Extension

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5) Close System Preferences.


Microsoft Defender for Endpoint will function as expected on your Mac.