Researchers have used a proof-of-concept (PoC) side-channel attack to download an unencrypted raw file for Netflix Stranger Things, in a format that s ready to distribute out to any buyer on the internet. Researchers at Fidus Information Security, who developed the PoC, say they won t publish the code or further details given the repercussions could be significant given the fact that the attack could be done so quickly. The researchers say the Widevine approach to encrypting copyrighted content and preventing piracy is actually quite secure.
Source: https://threatpost.com/netflix-compromised-widevine-drm-hack/144220/