Information technology is the driving force behind almost all innovations in the automotive industry, with perhaps 90% of all innovations in cars based on digital electronics and software. Dozens of networked microprocessors and several h- dred megabytes of software can be found in a common compact class car, contr- ling engine and driving functions, assisting the driver and enabling various c- fort, infotainment and safety functions. One crucial aspect of digital systems in vehicles is their security. Whereas software safety is a relatively well-established (if not necessarily well-understood) ?eld, the protection of automotive IT s- tems against malicious manipulations has only recently started to emerge. Even though many European car manufacturers have lately established R&D groups that are dedicated to embedded security in cars, so far there has not been an a- encompassing reference of this topic. The book by Dr. Marko Wolf ?lls this gap, and is by far the most comprehensive treatment of IT security in vehicles available today. A particular challenge of au- motive IT security is its interdisciplinary nature. Dr. Wolf has done an outstanding job incorporating disjoint areas in one comprehensive treatment. The book ranges from the relevant security technologies to a systematic analysis of security risks all the way to solution using state-of-the-art security methods. Despite the fact that much of the material is based on results from the research community, Dr.