The OAuth 2.0 protocol allows the users to grant a third-party website/API’s access to the protected resources without necessarily revealing their long-term credentials or even their identity.
OAuth 2.0 allows clients to access user’s resources on resource servers via authorization servers in a secure, reliable, and efficient manner.....
This article provides information on OAuth integration where AEM will act as a client during the integration.
Refer - https://medium.com/p/7683e07457d8