Inside a darkened conference room in the Miami Beach Holiday Inn, America’s most badass hackers are going to war – working their laptops between swigs of Bawls energy drink as Bassnectar booms in the background. A black guy with a soul patch crashes a power grid in North Korea. A stocky jock beside him storms a database of stolen credit cards in Russia. And a gangly geek in a black T-shirt busts into the Chinese Ministry of Information, represented by a glowing red star on his laptop screen. “Is the data secured?” his buddy asks him. “No,” he replies with a grin. They’re in.