Role-Based Access Control (RBAC) is the cleanest way to control who can do what inside any system. Instead of granting permissions to individual accounts one by one, RBAC groups them into roles. A role defines the exact actions a user can take. Assign the role, and the user inherits those permissions instantly. Nothing more. Nothing less.
RBAC user management scales. In a small app, you might have “admin,” “editor,” and “viewer.” In a large product, you might define dozens of roles across engineering, operations, and support. Change a role’s permissions, and every user with that role updates automatically. This prevents the sprawl of random privileges and keeps compliance audits straightforward.
Granularity matters. RBAC can limit access down to specific resources, workflows, or API endpoints. Combined with least privilege principles, it blocks accidental changes and hostile actors from reaching sensitive areas. Logging each permission change builds trust with security teams and product owners.