With his little homemade seat cushion and gray hat on its hook screwed into the 402s tray.

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But moving closer, there, standing in the middle of the fans, was Reed himself, his head covered in a rumply gray hat.

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"There's a lot of gray area, " said Jeff Moss, who founded the Black Hat security conference, a prominent event for security researchers, and now helps advise the Department of Homeland Security.

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