Offensive Automotive Cybersecurity is your practical guide to understanding how modern automotive vulnerabilities are exploited—so you can build resilient defenses against proven attack methods. As vehicles evolve into software-defined systems, their expanding attack surface increases exposure to sophisticated threats. This book examines the entire connected vehicle ecosystem—from cloud backends and wireless protocols to in-vehicle networks, HPCs, ECUs, and physical sensors—through an offensive security lens. Through a blend of theory and reviewing practical examples, you will learn to execute the full penetration testing lifecycle, encompassing active and passive reconnaissance, firmware reverse engineering, and the construction of complex attack chains. The book provides hands-on insights into exploiting memory corruption bugs in HPCs, abusing diagnostic protocols, and leveraging hardware-level vulnerabilities such as fault injection and side-channel leakage. These techniques are brought to life through detailed real-world case studies, including remote takeovers and exploits of well-known vehicle platforms. By the end of this book, you’ll be able to think like an adversary, uncover hidden risks before attackers do, apply secure-by-design principles, and implement layered defenses to reduce exploitable weaknesses.