At the 50 th anniversary of the formation of the International Federation for Information Processing the simple fact that national economies and international commerce alike have become totally dependent upon the reliable and secure operation of national and global information infrastructures has been accepted. Moreover, the realization that societies are moving towards so-called "digital economies" has been acknowledged by all, from the citizen to the highest leader of a nation. From the early days of 1960, with a perceived competitive advantage through computer usage, to today's acknowledgement of total dependence upon computer systems and integrated data networks on a global scale, the realization that the emerging digital economy in nation states, as well as national security and societal well-being, depend upon necessary critical information infrastructures has been accepted by governments and all enterprises worldwide. From banking and finance systems to healthcare record maintenance to "e-Government" all societal activities are affected.