This book begins by introducing the concept of embedded security, which involves protecting embedded systems from various threats and vulnerabilities. It highlights the importance of securing these systems, given their widespread usage and critical functions. The authors then delve into the emergence of IoT and its impact on the attack surface, making it challenging to maintain a consistent security posture. The book explores four common embedded system security challenges, including the lack of universally accepted standards or best practices, the use of wireless network connections, the incorporation of hardware and software components from various vendors, and the long life cycles of embedded systems. Target Audience: This book is intended for Cybersecurity professionals, embedded system designers, and IoT device manufacturers who want to learn about prevention techniques against IoT-based attacks and Cybersecurity strategies for embedded systems.