The first book to define the clear and present danger posed by a cyber-terrorist attack on the U.S. computer- and network-dependent infrastructure. The pages are packed with interviews from members of terrorist groups, including al-Qaida, as well as key insiders involved in planning and executing the U.S. plan for the defense of cyberspace, including Tom Ridge, James Gilmore, CIA and NSA officials--and even al-Qaeda supporters. Internet security expert Dan Verton investigates how cyber-terrorism could occur, what the global and financial implications are, the impact this is having and will continue to have on privacy and civil liberties, and how to prepare and prevent against cyber-terrorism.