This book offersreaders essential orientation on cybersecurity safeguards, and first andforemost helps them find the right balance between financial expenditures andrisk mitigation. This is achieved by pursuing a multi-disciplinary approach thatcombines well-founded methods from economics and the computer sciences.Established decision making techniques are embedded into a walk-through for thecomplete lifecycle of cybersecurity investments. Insights into the economic aspectof the costs and benefits of cybersecurity are supplemented by established andinnovative economic indicators. Readers will find practical tools and techniquesto support reasonable decision making in cybersecurity investments. Further,they will be equipped to encourage a common understanding using economicaspects, and to provide cost transparency for the senior management.