OAuth 2.0 Protocol

The video tutorial explains open authentication, which allows users to access third-party applications using credentials from another platform, like social media, without exposing their passwords. It describes how a web application can use social media credentials for login, requiring the application to be registered and approved by the social media platform. The process involves requesting an access token, ensuring the user's credentials remain private and secure. This seamless interaction protects user data from malicious applications.

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