Oh, this is interesting for sure. But I don't even use an Apple email address for mine. But this could be the case for everyone experiencing this, especially those of us who have never changed it all this time. Never thought of that before!This is PURE SPECULATION but...After this happened two or three times, I changed the email portion of my Apple ID to another email provider and dropped the Apple address. Here is my thinking. If someone knows your Apple email address and wants to mess with you, they could use that email address to log into iCloud multiple times with a different (incorrect, of course) password each time. At some point, Apple will assume someone is trying to break into your account and force you to log in and change the password.
Is it a coincidence that I have not been forced to change my Apple ID since I changed that email away from Apple's iCloud to another one dedicated to being the first half of my Apple ID???
Have you pissed someone off lately? Made them mad enough to mess with you like that???
I am wondering if it has something to do with using all email addresses against Apple ID's that are in the wild, from previous hacking. No one knows that it is my Apple ID email address.