Google Identity Platform
Google Identity Platform is (formerly part of Google+) a proprietary identity provider for building Google Sign-In support into your applications that only provides Google-controlled identities, and does not accept externally provided identities.
- Google Plus
- Criticism of opt-out login flow: 2019-01-11 How did we let the Web get to this point. All I wanted to do was read this blog post. (see screenshot in post)