juniorWeb Security
Difference between authentication and authorization?
Updated May 6, 2026
Short answer
Authentication verifies identity; authorization determines access rights.
Deep explanation
Authentication checks credentials, while authorization checks permissions after identity is confirmed.
Real-world example
Login vs accessing admin dashboard.
Common mistakes
- Confusing login success with full access rights.
Follow-up questions
- Can you have authentication without authorization?
- What are RBAC systems?