In this introductory chapter, we illustrate the book’s motivation and objective. In particular, the book takes its raison d’être from the need for protecting Cyber-Physical Systems
(CPSs) against threats originating either in the cyber or in the
physical domain. Exploring the concepts of safety, security, and
privacy for CPSs thus emerged as the natural goal to reach. In order to
better support this objective and to help the reader to navigate the
book contents, a taxonomy of the above-mentioned concepts is introduced,
based on a set of three triads, including the well-known Confidentiality, Integrity, and Availability triad which was introduced in the Information Technology security literature.