Microsoft Entra OpenID Connect (OIDC) is more than an identity protocol. It’s the secure bridge between your application and the authentication authority that knows your users. Built on top of OAuth 2.0, OIDC adds an identity layer that delivers verifiable user information in a simple and consistent way. With Microsoft Entra ID at the core, you can authenticate securely without writing brittle code or building from scratch.
The power is in the token. After authentication, Microsoft Entra issues an ID token in JWT format containing claims that your app can trust. These claims tell you who the user is, how they signed in, and what they’re allowed to do. Configuring it means defining an application in Entra ID, registering redirect URIs, and setting proper permissions. The protocol handles sign-in, consent, and token issuance without exposing credentials to your app directly.
Security here is not an afterthought. OIDC with Microsoft Entra enforces modern security standards: HTTPS everywhere, cryptographic validation of tokens, nonce and state parameters to protect against replay and CSRF attacks, and refresh token flows for long-lived sessions without re-prompting credentials. Every call to the Microsoft identity platform endpoints can be verified and logged, strengthening your audit and compliance posture.