Is There Any Reason Not to Use My Social Network Account to Sign Into Apps?
Dear Lifehacker, Why do all these apps on my phone and on the web want my Facebook (or Twitter and Google) information to sign up for an account? Is it safe to use these?
Feb 15, 2013 ... ... want my Facebook (or Twitter and Google) information to sign up for ... allow an email login instead of linking to your social network account.