Connect Dropbox to Microsoft Defender for Cloud Apps


Microsoft Defender for Cloud Apps (previously known as Microsoft Cloud App Security) is now part of Microsoft 365 Defender. The Microsoft 365 Defender portal allows security admins to perform their security tasks in one location. This will simplify workflows, and add the functionality of the other Microsoft 365 Defender services. Microsoft 365 Defender will be the home for monitoring and managing security across your Microsoft identities, data, devices, apps, and infrastructure. For more information about these changes, see Microsoft Defender for Cloud Apps in Microsoft 365 Defender.

This article provides instructions for connecting Microsoft Defender for Cloud Apps to your existing Dropbox account using the connector APIs. This connection gives you visibility into and control over Dropbox use. For information about how Defender for Cloud Apps protects Dropbox, see Protect Dropbox.

Because Dropbox enables access to files from shared links without signing in, Defender for Cloud Apps registers these users as Unauthenticated users. If you see unauthenticated Dropbox users, it may indicate users who aren't from your organization, or they might be recognized users from within your organization who didn't sign in.

How to connect Dropbox to Defender for Cloud Apps

  1. In the Defender for Cloud Apps console, select Investigate and then Connected apps.

  2. In the App connectors page, select the plus button followed by Dropbox.

    connect dropbox.

  3. In the pop-up, enter the admin account email address.

  4. Select Generate link.

  5. Select Follow this link.

    The Dropbox sign in page opens. Enter your credentials to allow Defender for Cloud Apps access to your team's Dropbox instance.

  6. Dropbox asks you if you want to allow Defender for Cloud Apps access to your team information, activity log, and perform activities as a team member. To proceed, select Allow.

  7. Back in the Defender for Cloud Apps console, you should receive a message that Dropbox was successfully connected.

  8. Make sure the connection succeeded by selecting Test API.

    Testing may take a couple of minutes. After you receive a success notice, select Close.

After connecting Dropbox, you'll receive events for 60 days prior to connection.


Any Dropbox events for adding a file are displayed in Defender for Cloud Apps as Upload file to align to all other apps connected to Defender for Cloud Apps.

If you have any problems connecting the app, see Troubleshooting App Connectors.

Next steps

If you run into any problems, we're here to help. To get assistance or support for your product issue, please open a support ticket.