Summary
This whitepaper serves as a technical primer on Fine-Grained Authorization (FGA), detailing its significance within the broader context of Identity and Access Management (IAM). The document outlines the evolution of access control requirements, emphasizing the need for precision and flexibility in user access as organizations increasingly adopt Software-as-a-Service (SaaS) applications. It compares various access control methods, including role-based access control (RBAC), attribute-based access control (ABAC), and relationship-based access control (ReBAC), highlighting the advantages of FGA in enabling fine-grained policies necessary for collaborative environments. The whitepaper also discusses the implications of Zero Trust security principles on access management and the importance of compliance with regulations such as Sarbanes-Oxley and PCI DSS. Furthermore, it presents key concepts and terminology related to Auth0 FGA, alongside a configuration language and a guide for implementation. The document concludes by addressing the challenges and requirements for effective authorization in modern SaaS landscapes.
