Researcher extracts DRM key from Microsoft and downloads Netflix movies

From the researcher's site [1]:

> On Jun 11, 2024 Microsoft engineer posted on a public forum information about a crash experienced with Apple TV service on a Surface Pro 9 device.

Ouch. This should not be too bad for hardware-based DRM levels since keys are better protected there (and properly done hardware-based DRM doesn't need to lean on security through obscurity), but I'm not sure if PlayReady also has any software-only levels.

[1] https://security-explorations.com/microsoft-warbird-pmp.html