According to Macworld the hack is part of an escalating technical war by hackers against DRM.
Netflix started a service called Watch Now that lets people watch movies and TV shows immediately on their computer. Hacker "Dizzie" published a 14-step system that includes the use of FairUse4WM to strip away Microsoft's DRM.
The process is not fool proof and sometimes takes a couple of goes.
More here. µ
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