Glossary term
What is ACL (Access Control List)?
ACL stands for Access Control List.
A list of who can do what on a resource. Example: File shared with Asha (edit) and Ravi (view).
Learn it properly · System DesignLesson 49: Authentication vs Authorization: Sessions, Cookies & JWTEvery endpoint checked “is the user logged in?” — and changing one number in the URL showed another customer's invoice. Authentication vs authorization, storing passwords, MFA and passkeys, sessions vs JWTs (with a live token to tamper with), and RBAC, ABAC and ReBAC.