Your API Still Works After Logout 😳 Why?

You clicked logout... but the API still accepts the old token.

Why?

In many systems, logout only clears the token from the browser. The backend still trusts that token until it expires. This is especially common in stateless JWT-based authentication flows where the server does not track session state.

In this short, I explain:
why logout often fails to immediately end access, why expiration is not the same as revocation, and how to fix it using short-lived access tokens, refresh token rotation, session stores, token versioning, and denylist-based revocation.

If you're learning backend development, API security, Spring Boot, Java, authentication, or system design, this is a real-world auth issue you need to understand.

Follow for more real backend and security tips.

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Видео Your API Still Works After Logout 😳 Why? канала Java Tech Solutions