It makes a possibly dodgy website look more secure and legit by using a well known provider like Github for the login process.
In addition, it potentially exposes data from that well known provider, which is often sensitive data, as in the case of Github.
It makes a possibly dodgy website look more secure and legit by using a well known provider like Github for the login process.
In addition, it potentially exposes data from that well known provider, which is often sensitive data, as in the case of Github.