IAM 101: RBAC, ABAC, and PBAC – Choosing the Right Access Model

TL;DR Access control models define who can access what within your systems—and more importantly, under what conditions. The most common models—RBAC (Role-Based Access Control), ABAC (Attribute-Based Access Control), and PBAC (Policy-Based Access Control)—offer different strengths depending on your organization’s complexity, compliance needs, and operational maturity. In this post, we’ll explore each model, compare real-world use cases, and help you decide which approach fits your identity strategy. 🔍 Background In the IAM world, authorization is the engine that drives secure access—yet it’s also where things get messy....

May 21, 2025 · 5 min · Jay Klinkowsky