Just How Advanced Is The NSA's Decryption Tech?

There have been no end of reports about the NSA's mind-blowing decrytion techniques. But just how much of it is super-smart computer science, and how much is brute force?

In this video, Richard Mortier from the University of Nottingham, UK, describes the mathematics -- and other, less sophisticated techniques -- that the NSA is using to snoop on us all. [YouTube]

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