Restricting Downloads & Offline Access
Understanding the Concept
Beyond DLP, you can restrict downloads and offline access to sensitive documents using sensitivity labels and Conditional Access App Control (MCAS/Defender for Cloud Apps integration).
Block download policies prevent users from downloading files to unmanaged devices while allowing view access in the browser. This enables productivity while preventing local data storage.
Session controls can enforce view-only mode, prevent cut/copy/paste, and watermark documents with the viewer's identity to discourage screenshots.
Key Points
- Block Download: Allow view in browser, prevent download
- Session Controls: Real-time session monitoring via proxy
- Watermarking: User identity overlay on documents
- Cut/Copy/Paste Block: Prevent content extraction
- Unmanaged Device Blocking: Different rules for personal devices
Why This Matters in Real Organizations
Downloading creates copies outside your control. By keeping data in the cloud and allowing only browser access, you maintain visibility and control even when users access from unmanaged devices.
Common Mistakes to Avoid
Interview Tips
- Explain the role of Conditional Access and MCAS
- Discuss the balance between access and protection
- Mention the licensing requirements
Exam Tips (SC-401)
- Know the integration with Defender for Cloud Apps
- Understand session control capabilities
- Know when block download applies vs doesn't
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