Hacktivism – hacking for social change – has a rich history that started with a little-known group called the Cult of the Dead Cow. Jim Lewis talks with Joseph Menn, a renown cybersecurity reporter, to discuss his new book, Cult of the Dead Cow: How the Original Hacking Supergroup Might Just Save the World. They examine the legacy of some of the original cyber vigilantes, and new trends in the hacktivist community, from infiltrating spyware vendors to intelligence agencies.