The AAA Model

Question 1

The AAA Model

AAA = Login → Permission → Tracking

Answer 1

✅ AAA Model (Authentication, Authorization, Accounting)

1️⃣ Authentication – “Who are you?”
Verifies the user’s identity.
Examples: username/password, biometrics, smart cards, MFA.

2️⃣ Authorization – “What are you allowed to do?”
Defines the user’s permissions after they are authenticated.
Examples: access rights, commands allowed, resource privileges.

3️⃣ Accounting – “What did you do?”
Tracks and logs user actions.
Examples: session start/stop times, commands executed, data used.