This book presents a novel framework to reconceptualize Internet governance and better manage cyber attacks. Specifically, it makes an original contribution by examining the potential of polycentric regulation to increase accountability through bottom-up action. It also provides a synthesis of the current state of cybersecurity research, bringing features of the cloak and dagger world of cyber attacks to light and comparing and contrasting the cyber threat to all relevant stakeholders. Throughout the book, cybersecurity is treated holistically, covering outstanding issues in law, science, economics, and politics. This interdisciplinary approach is an exemplar of how strategies from different disciplines as well as the private and public sectors may cross-pollinate to enhance cybersecurity. Case studies and examples illustrate what is at stake and identify best practices. The book discusses technical issues of Internet governance and cybersecurity while presenting the material in an informal, straightforward manner. The book is designed to inform readers about the interplay of Internet governance and cybersecurity and the potential of polycentric regulation to help foster cyber peace.