Think of social media as a repository of user data that is just waiting to be tapped.
To understand the need for Social Login, we first need to understand why the standard user registration process poses a problem. The first obstacle is the reluctance of users to share personal information with a website they know nothing about; these trust issues are difficult to overcome.
Facebook Login for Websites
Facebook Login is a secure, fast and convenient way for people to log into your app or website.