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How does the communication from the computer to the phone work?

• iudqnolq 7y ago
  No idea. Presumably a push notification. Within less than a second providing your email (on fast US data) you get a prompt on your phone that shows the browser model and approx location and asks you to approve or disapprove the login. They initially rolled it out as a 2FA option, then as an optional for 1FA.
  • nicky0 7y ago
    OK so you have to actually type your email into the computer.
    • iudqnolq 7y ago
      Exactly. Google already asked for email alone and then password on the next page so that they could support sending enterprise emails to custom login systems.