Thanks, and right... I don't expect maliciousness on fly's part. But you'd be surprised (or not) how many goog products phone home with anything they can find. In fact it might be called a "business model" of some sort.
Google's SSO can't really phone home. You're either using SAML or OAuth; in either scenario, the information flow is Google --> the app you're SSOing into; name, email, and user group information.
If you're SSOing into, say, AWS, Google doesn't get any access or private info out of AWS in the flow.
