In this course, learners will be going the study the Internet of Things (IoT) security. Starting from the Internet of Things (IoT) security introduction, learners will get an idea about why security is required in the Internet of Things (IoT). After that learners will be going to study different security requirements in the Internet of Things (IoT) like Access Control, Authentication, Data Confidentiality, Availability, Trust Management, Secure Storage, Tamper Resistance, Scalability, Flexibility, and Adaptability, etc. After that, learners will also be going to study various vulnerabilities of the Internet of Things (IoT) like Unauthorized Access, Information Corruption, Theft of Resources, Information Disclosure, DoS attacks, DDoS, etc. Then learners will be going to study the different challenges for securing the Internet of Things (IoT) like Identity Management for Devices, Secure Interactions in/with the Internet of Things (IoT), Distributed Access Control and Privacy, Secure Data Management and Exchange, End-to-End Security, Privacy & Security Structure, etc. Then learners will be going to study various key elements of the Internet of Things (IoT) Security like Identity establishment, Access control, Data, and message security, Non-repudiation and availability, Security model for the Internet of Things (IoT), etc. After that learners will be going to study various challenges in designing the Internet of Things (IoT) applications. And at the end, learners will be going to study lightweight cryptography in the Internet of Things (IoT) applications.