This volume follows from Vol. 1 of the International CIIP Handbook and analyses key issues and major future challenges for the CIIP community from a socio-political perspective. The volume is divided into three parts: Part I discusses conceptual issues and addresses such aspects as the differences between the concepts of CIP and CIIP, the approaches in use to analyze these systems, and what it is we seek to protect. Part II looks at what actually threatens the information infrastructure. Part III addresses two policy issues: public-private partnership and the need for international cooperation.