Unfortunately, the paper is under an embargo, or behind a paywall or maybe just not available yet, so nobody can really comment intelligently.<p>If the authors of the paper did as described by Ars Technica, then this is very interesting, along the lines of Andy Ozment's "Milk or Wine" (<a href="http://www.andyozment.com/papers/Ozment_and_Schechter-Milk_Or_Wine-Usenix06.pdf" rel="nofollow">http://www.andyozment.com/papers/Ozment_and_Schechter-Milk_O...</a>) something that could only be figured out in open source software.