As the deployment of embedded systems, IoT devices, and intelligent edge technologies continues to expand, the scope for security breaches and potential attacks also increases. Whether it's a compact IoT thermostat in a home or a complex interconnected system, each connected device presents one or more potential vulnerabilities that malicious actors can exploit. With countless devices already connected and an even greater number on the horizon, ensuring the security of these devices and safeguarding the generated data becomes an absolute necessity. In this course, our primary focus is on studying the security of embedded systems and IoT. Throughout the course, we extensively address current security challenges and their corresponding solutions, spanning hardware, software, architectural, and network domains inherent to both embedded systems and IoT landscapes. The core principles of cryptography and its practical applications within interconnected embedded systems will be covered. Additionally, the course will conduct a thorough exploration of specific attack scenarios such as Spectre and Meltdown, gaining a comprehensive grasp of the contemporary strategies employed by modern embedded systems to mitigate these vulnerabilities. The overarching objective of this course is to provide students with a solid foundational understanding of security within the realm of embedded systems and the expansive scope of the IoT.