I click this alert's (i):
[url]https://i.imgur.com/w0a3M3k.png[/url]
then here:
https://i.imgur.com/sNZXtHG.png
below "Security alerts in Gmail" I click "Learn more about this alert".
This lands on a page having nothing about this alert.
Hmm. I search web, find this [url]https://guidebooks.google.com/online-security/account-hacked/verify-security-alert[/url] and read:
"All genuine security alerts from Google are listed on the Security page of your Google Account."
I go there. This alert is absent.
So ... this security alert in Gmail is not a genuine security alert from Google??
What a mess.