This book tells the stories of five great hacks, their origins, motivations and consequences. As well as Fancy Bear, Robert Morris and Dark Avenger, we meet Cameron Lacroix, and Paras Jha, a Rutgers undergraduate, who built a giant botnet designed to get him out of his calculus exam and disrupt the online game Minecraft, but which almost destroyed the internet in the process. Scott Shapiro's five stories demonstrate that computer hacking is not just a tale of technology, but of human beings. Yet as Shapiro shows, hackers do not just abuse computer code - they exploit the philosophical principles of computation: the very features that make computers possible also make hacking possible. He explains how our information society works, the ways our data is stored and manipulated, and why it is so subject to exploitation.