A Beginner's Guide to Internet of Things Security focuses on security issues and developments in the IoT environment. The wide-ranging applications of IoT, including home appliances, transportation, logistics, healthcare and smart cities, necessitate security applications that can be applied to every domain with minimal cost. IoT contains three layers: application layer, middleware layer and perception layer. The security problems of each layer are analyzed separately to identify solutions, along with the integration and scalability issues with the cross-layer architecture of IoT. The book discusses state-of-the-art authentication-based security schemes which can secure RFID tags, along with some security models that are used to verify whether an authentication scheme is secure against any potential security risks. It also looks at existing authentication schemes and security models with their strengths and weaknesses. The book uses statistical and analytical data and explains its impact on the IoT field, as well as an extensive literature survey focusing on trust and privacy problems. The open challenges and future research direction discussed in this book will help to further the academic researchers and industry professionals in the domain of security. Book jacket.