I just released my Firebase based app on Google Play and using Flutter Firebase Auth package https://firebase.flutter.dev/docs/auth/social
I started noticing lots of spam registrations. How do I know they are spam? They do not create a user table that my app creates in Firebase on app launch, just an entry in the Firebase Authentication list, and their names follow the same pattern:
firstnamelastname1234567@gmail.com
What can be done to prevent these, but preserve the simplicty of Google social authentication?