Is there any loss of privacy while using 2 Factor authentication?
If you use Google Authenticator on an android phone (where essentially you have linked your google id), to authenticate the login of a third party website, can google link your google id with the credentials of the third party website?
As far as I know about this 2 factor authentication I never seen or heard that there is somebody loss their privacy by using this things. Even me,
while I'm using it in different exchange platform through Google Authenticator so far so good to me anyway.