“Part theater and part science, social engineering is the method by which hackers, for lack of a better term, exploit vulnerabilities in human psychology; for Jonah, it was a key to getting anything he wanted, from televisions and laptops to smartphones and expensive wines. One of his largest takes netted him around $60,000 worth of product, he says. He showed me a Rolex Daytona watch—part of a gallery of stolen goods he’d photographed in his bedroom—which retails on Amazon for around $26,000. Whether through face-to-face interaction, by phone, or by email, the human gatekeepers of any network can be exploited—if you know how to play the game. They’re the weakest link in any company’s security.