To reduce the complexity of registration processes and need to remember multiple passwords, organizations have moved towards use of Social Authentication or Social Login.
Social Authentication is a type of authentication technique which minimizes the complication to website entry by lowering the need for usernames and passwords and allows users to authenticate using their existing social media identities and pre-verified user accounts (i.e. Facebook, Twitter, LinkedIn etc.). Users can simply use their credentials (username and passwords) of their social accounts to login to the website. The protocols used to achieve social authentication are OpenID, SAML & OAuth.
How is Social Authentication different from other Authentication Mechanisms?