> The flavor of AACS used by UHD Blu-ray further attacks users' freedom (and possibly privacy) by forcing them to connect to a company server to download the decryption keys.

Wait a sec. 4k Blu-ray players must be online to play a disc?

I myself only have BD players for regular discs (which I never connected online), but a few times I was really thinking about getting a UHD player for a couple of my favorite movies... but if they must be online, I will just try to survive on the 4k rips that fall off of the 4k-video-transporting-truck...

This probably only applies to Windows. Hardware players don't need Internet access.

I have to assume from this that AACS 2.1 hasn't been defeated yet, unlike the original AACS?

AACSv2 was circumvented late last year.

https://media.ccc.de/v/37c3-12296-full_aacsess_exposing_and_...