Information has become one of the most valuable assets that must be protected. With the growing use of the internet, the rise of the Internet of Things (IoT), and our increasing reliance on cloud services, it’s essential to understand how to safeguard our data and privacy. This is where encryption plays a vital role as a fundamental tool for securing information. This course aims to provide you with a solid foundation in encryption and information security concepts. We’ll begin with a simplified overview of encryption and how it’s used to protect data. Then, we’ll explore the CIA model, which focuses on three key principles: Confidentiality (ensuring data is not disclosed to unauthorized parties), Integrity (preventing unauthorized alteration of data), and Availability (ensuring authorized users have access to information when needed). We’ll also give a clear overview of the challenges facing IoT devices and how to manage risks in cloud environments. No prior experience is required for this course, making it ideal for anyone looking to understand the basics of information security and encryption in a simple and clear way. Join us and take your first confident step into the world of information security!