The most astounding development in information explosion has been the geometric expansion of trade, commerce, entertainment and information jointly known as the internet or the web. The web accepts no restrictions of the country, race, religion or caste and has been totally responsible as a decisive factor in taking the world as global village. It is generally believed that a website is created every minute and along with its positive aspect it also brings about a new sense of responsibility. The free trade and commerce available through website in what is known as cyber space has also given birth to a mobile population where intent may be basically criminal. Thus we have hackers, virus carriers, sleepers and moles, who may constitute a real threat to the creativity of the web. There is, therefore, the eternal question of intellectual copyright and the policing of vast cyber space to protect and maintain what manhood can truly achieve. This Encyclopaedia tries to cover as many laws as possible, promulgated by various countries and unions of countries like the European Union in this area to gave a comprehensive and comparative view of CYBER Law.