Google has a feature they seem to call "Signing in with Google"
In the Google Account settings it's listed as
You can see this in action if you have a Google account but don't have a TripAdvisor account. When you visit TripAdvisor.com a box will appear asking if you want to join/login with your Google Account.
How can I disable this feature? I never want that prompt to appear EVER. It's too easy to hit by accident, especially in a rush, and the moment you do the site gets access to a bunch of your info.
How can I disable this feature as a regular google user?
How can I disable this feature as a GSuites Admin so that none of my users can sign in to 3rd party sites with their google run corporate account?
Background: Yesterday I was trying to lookup a hotel from Band of Brothers the HBO TV series. Searching for Band of Brothers Hotel brought up the hotel. Clicking the first link took me to tripadvisor.com (on my phone). I don't know what I clicked. If that login prompt appeared it appeared for 0.001 seconds as I was in the middle of a conversation trying to quickly find where the hotel is, Switzerland or Austria and frantically clicking links to find its location. Today I get spam in my corporate email account from TripAdvisor with offers to book the hotel.
Of course now tripadvisor has my corporate email account in their database forever and I'm sure they've already shared it with 497 ad partners.