His name is not Opsec, but I will call him that to guard his privacy. In webspace he is known as a grand master of the dark art of hacking. He is one of a small elite—maybe a hundred, maybe fewer—all of whom are secretive and obsessed with security. They do not talk about their work with their families. They generally do not talk to the press. Nonetheless, through friends of friends, Opsec agreed to speak and to introduce me to his perspectives. In “meatspace,” as he and others like him call the real world, Opsec lives in a metropolitan area in a little wooden house by a railroad track. He is in his mid-30s, physically imposing, and not a geek. He hangs out in a local bar, where the regulars know vaguely that he works with computers.