The book summarizes all aspects of risk management, connects them with other information sources, and is framed with numerous practical tips, 38 illustrations and tables, as well as 14 case studies. For those who want to work with ISO/IEC 27005, a cursory glance at the standard is not sufficient. The ISO/IEC 27000 series has grown significantly in recent years, making it difficult to keep track. This book aims for practical application and is intended for anyone who wants to make decisions based on a solid risk analysis. Additional features for smartphones: 40 QR codes with editorially maintained links allow you to access the internet directly from the book using your smartphone. This way, you can reach the appropriate website from the book page without typing. In this manner, the advantages of both the book and the internet are always available to you.