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AuthN vs AuthZ: Why API Security Quietly Fails in Production

API security is often considered solved once tokens are validated. In production, the real risks begin when authorization decisions are made in the wrong layer. This article examines why AuthN vs AuthZ is an architectural concern, not just a security detail.

API SecurityAuthenticationAuthorizationAuthN vs AuthZ

Selim Çalık•Jan 25, 2026•

5 min