The cloud is ubiquitous. Everyone is rushing to the cloud or is already in the cloud, and both of these groups are concerned with cloud security. In this book, we will explain the concepts of security in a beginner friendly way, but also hint at the great expanse of knowledge that lies beyond.This book offers a detailed guide to cloud security, from basics to advanced concepts and trends. It covers cloud service and deployment models, security principles like IAM and network security, and best practices for securing infrastructure, including virtual machines, containers, and serverless functions. It encompasses foundational cybersecurity principles, complex networking architectures, application security, and infrastructure design. Advanced topics like DevSecOps, AI security, and platform engineering are explored, along with critical areas such as compliance, auditing, and incident response.By the end of this book, you will be confident in securing your cloud environment. You will understand how to protect virtual machines, containers, and serverless functions and be equipped to handle advanced topics like DevSecOps and the security implications of AI and ML.