There are several
gmail accounts on an iPhone already but adding a particular account generates an error. All that I seem to get is a generic error message about security.
Logging in via a browser on a computer works fine. There's no MFA on this
gmail account. There are no security alerts about attempted logins for the gmail account from another device.
I'm not seeing this specific error in search results, but it seems to be aimed towards protecting the Google account from getting hijacked. Fair enough. In this case it's a legitimate login which I want to enable.
gmail account works fine from different computers and devices including Linux, Windows, Android, and Thunderbird. All indications are that the error is iPhone specific.
Perhaps the facial recognition on the iPhone is triggering something?
seems usefully related. However, there are no security alerts from Google.