Digital Rights Management

• Hardware Level

  • DRM cryptography for certified players

• Software Level

  • prevent screen capturing:
    • Android
      • android.media.projection
      • getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE)
    • iOS
      • https://stackoverflow.com/questions/13484516/ios-detection-of-screenshot
    • Windows
      • SetWindowDisplayAffinity Windows API with a WDA_MONITOR affinity.

Reference:

• https://www.quora.com/What-technology-does-Netflix-and-other-streaming-services-use-to-prevent-someone-from-screen-capturing-a-movie-or-even-taking-a-screen-shot-I-am-a-Computer-Science-major-and-its-annoying-me-that-I-cant-figure-out-how-it-works