Manually creating accounts is a pain: we just want to access an app’s services, not spend five minutes setting up emails, passwords, and basic information. That’s why the “Log in with Facebook” and “Log in with Google” buttons have become so common across the Internet. Users love this federated login technique because it makes creating accounts much easier, and websites/apps love it because they can get way more users to sign up for accounts. Since you can create accounts using Google, Facebook, Twitter, Microsoft, LinkedIn, Github, WeChat, VKontakte, Weibo, and more, chances are you’ve used one of these services, but also briefly wondered if… Read more