Configure information protection in Windows

Applies to:

Learn how you can use Microsoft Defender ATP to expand the coverage of Windows Information Protection (WIP) to protect files based on their label, regardless of their origin.

If a file meets the criteria set in the policy settings and endpoint data loss prevention setting is also configured, WIP will be enabled for that file.

Prerequisites

  • Endpoints need to be on Windows 10, version 1809 or later
  • You'll need the appropriate license to leverage the Microsoft Defender ATP and Azure Information Protection integration
  • Your tenant needs to be onboarded to Azure Information Protection analytics, for more information see, Configure a Log Analytics workspace for the reports

Configure endpoint data loss prevention

  1. Define a WIP policy and assign it to the relevant devices. For more information, see Protect your enterprise data using Windows Information Protection (WIP). If WIP is already configured on the relevant devices, skip this step.

  2. Define which labels need to get WIP protection in Office 365 Security and Compliance.

    1. Go to: Classifications > Labels.

    2. Create a new label or edit an existing one.

    3. In the configuration wizard, go to 'Data loss prevention' tab and enable WIP.

      Image of Office 365 Security and Compliance sensitivity label

    4. Repeat for every label that you want to get WIP applied to in Windows.

After completing these steps Microsoft Defender ATP will automatically identify labeled documents stored on the device and enable WIP on them.

Note

  • The Microsoft Defender ATP configuration is pulled every 15 minutes. Allow up to 30 minutes for the new policy to take effect and ensure that the endpoint is online. Otherwise, it will not receive the policy.
  • Data forwarded to Azure Information Protection is stored in the same location as your other Azure Information Protection data.

Configure auto labeling

Windows automatically detects when an Office file, PDF, CSV or TXT files are being created on a device and inspects it based on context to identify sensitive information types.

Those information types are evaluated against the auto-labeling policy. If a match is found, it is processed in the same way as if the file was labeled; the file is protected with Endpoint data loss prevention.

Note

Auto-labeling requires Windows 10, version 1903.

  1. In Office 365 Security & Compliance, go to Classifications > Labels.

  2. Create a new label or edit an existing one.

  3. Set a policy for Data classification:

    1. Go through the label creation wizard.

    2. When you reach the Auto labeling page, turn on auto labeling toggle on.

    3. Add a new auto-labeling rule with the conditions that you require.

      Image of auto labeling in Office 365 Security and Compliance center

    4. Validate that "When content matches these conditions" setting is set to "Automatically apply the label".