Paradigm Shift: Moving Beyond Roles and Permissions to a Fine-Grained Access Control

This talk explores the evolution of authorization and access control as code, covering basic definitions of fine- vs coarse-grained, as well as the differences between the various models. Understand the nuances of acronyms like RBAC, ABAC, PBAC, OPA, and ReBAC, so you can make informed choices for your specific use case. We'll dive deeper into each authorization paradigm, looking at how it can be implemented using popular open-source tools like OPA or OpenFGA and examine each tool's strengths and areas where another approach might be better suited.