SuperDaE has been a nickname that has made headlines in the gaming world as of late. This person, who put a Durango (next Xbox devkit) on Ebay and provided Kotaku with alleged documentation on the devkit, tweets that police and FBI raided his house.
Obviously every devkit that makes it out of Microsoft is guarded by heavy NDA's and anyone who leaks (or in this case sells) documentation or equipment is opening themselves up to rather severe consequences.
As of now, we can't really be sure any of this is actually true. And SuperDaE, who claims to be a security analyst and chronic pain sufferer (on Twitter) could very well just be an imaginative and creative troll looking to make a lot of money selling off some junk as a Durango devkit.