Advanced – Security Testing
OAuth 2.0 – ISTQB Definition
Last Updated: July 12, 2026 · SoftwareTestPilot QA Team
Official ISTQB Definition
An authorization framework enabling third-party applications to obtain limited access to a user’s account without exposing credentials.
In simple words
The standard "Sign in with Google" style delegation protocol.
Exam tip
OAuth handles authorization, not authentication — OpenID Connect layers auth on top.
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