midWeb Security
What is OAuth 2.0?
Updated May 6, 2026
Short answer
OAuth 2.0 is an authorization framework for delegated access.
Deep explanation
It allows third-party apps to access resources without sharing credentials using access tokens.
Real-world example
Login with Google or GitHub.
Common mistakes
- Confusing OAuth with authentication.
Follow-up questions
- What is OpenID Connect?
- What are access tokens?