Information warfare (IW) is a concepts involving the use and management of information and communication technology in pursuit of a conpetitive advantage over an opponent. Cybersecurity is the protection of information systems from theft or damage to the hardware, the software, and to them, as well as well as from disruption or misdirection of the services they provide. This book is an investigation into computer security and electronic crime. It reports how information warrious could modify people's credit cards, driving records, bank accounts, plane reservations, and bring the stock exchange to a halt.