I came upon the brave new world of computer communications and its darker side, the underground, quite by accident. It struck me somewhere in the journey that followed that my trepidations and conflicting desires to explore this alien world were perhaps not unlike my aunt's own desires some half a century before. Like her journey, my own travels have only been made possible by new technologies. And like her, I have tried to capture a small corner of this world. This is a book about the computer underground. It is not a book about law enforcement agencies, and it is not written from the point of view of the police officer. From a literary perspective, I have told this story through the eyes of numerous computer hackers. In doing so, I hope to provide the reader with a window into a mysterious, shrouded and usually inaccessible realm. Who are hackers? Why do they hack? There are no simple answers to these questions. Each hacker is different. To that end, I have attempted to present a collection of individual but interconnected stories, bound by their links to the international computer underground. These are true stories, tales of the world's best and the brightest hackers and phreakers. There are some members of the underground whose stories I have not covered, a few of whom would also rank as world-class. In the end, I chose to paint detailed portraits of a few hackers rather than attempt to compile a comprehensive but shallow catalogue. While each hacker has a distinct story, there are common themes which appear throughout many of the stories. Rebellion against all symbols of authority. Dysfunctional families. Bright children suffocated by ill-equipped teachers. Mental illness or instability. Obsession and addiction. I have endeavoured to track what happened to each character in this work over time: the individual's hacking adventures, the police raid and the ensuing court case. Some of those court cases have taken years to reach completion. Hackers use `handles'--on-line nicknames--that serve two purposes. They shield the hacker's identity and, importantly, they often make a statement about how the hacker perceives himself in the underground. Hawk, Crawler, Toucan Jones, Comhack, Dataking, Spy, Ripmax, Fractal Insanity, Blade. These are all real handles used in Australia. In the computer underground, a hacker's handle is his name. For this reason, and because most hackers in this work have now put together new lives for themselves, I have chosen to use only their handles. Where a hacker has had more than one handle, I have used the one he prefers. Each chapter in this book is headed with a quote from a Midnight Oil song which expresses an important aspect of the chapter. The Oilz are uniquely Australian. Their loud voice of protest against the establishment--particularly the military-industrial establishment--echoes a key theme in the underground, where music in general plays a vital role.