Social login, the ability to use an existing identity from a site like Google, Facebook, or a Microsoft account, is an example of which of the following concepts?

Social login is an example of a federated approach to using identities. The combination of identity providers and service providers, along with authorization management, is a key part of federation. AAA (authentication, authorization, and accounting) is typically associated with protocols like RADIUS. Privilege creep occurs as staff members change jobs and their privileges are not adjusted to only match their current role. IAM is a broader set of identity and access management practices. Although IAM may be involved in federated identity, this question does not directly describe IAM.