This process did nothing for my problem, which is what the article describes PLUS a pop-up that ask to authorize my Mac from another device.
Signing off and signing on again did nothing. Within two days the opo-ups show up again.
It must either be a iCloud problem that has nothing to do with my Mac (everything in icloud works fine even when I ignore the pop-ups),
OR
it’s a bug within Apple software that has nothing to do with current status, it’s just sending the pop-ups to the screen.
Apple, FIX THIS!
And NEXT time TEST YOUR SOFTWARE!
Apple is becoming too much like Microsoft of the late 2002.
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Apple ID asking for verification on another device