Book excerpt: The book is not only about cloud computing IAM, it covers a wide range of topics related to identity and data security including in web and cloud environments. The book provides insights into best practices for securing user identities, managing access controls, implementing authentication and authorization mechanisms, and handling data security concerns in modern web and cloud applications. The book breaks down proven and mature cloud computing technologies and practices into a series of well-defined concepts, models, and technology mechanisms. In doing so, the book establishes concrete, academic coverage of fundamental aspects of cloud computing concepts and technologies, carefully described to ensure full alignment with the cloud computing industry.