This part establishes why IAM exists and what it means in practice. It begins with the shift from network-centric security to identity-centric security and explains why identity has become the foundation of digital trust in cloud, remote work, collaboration, APIs, and industrial environments. It then defines IAM clearly, removes common misunderstandings, and introduces the essential building blocks that make IAM work in real organizations.
By the end of this part, the reader understands the βwhyβ of IAM, the language of IAM, and the core components that appear in every IAM program, regardless of industry or technology stack.