I recently updated my apple id password via my macbook pro. Then i followed up with my iphone, which prompted me to get a security code from my macbook. Now the first few times, rather than enter the code, I selected cancel on my iphone before proceeding, simply because i was wondering why to prompt on my macbook was showing that i was half way across the country. So i played around with a few settings first to see if anything changed my supposed location, canceling each time rather than enter the code. (ultimately what did provide an accurate location was to connect my phone to the cloud via wifi rather than cellular). I don't use icloud keychain. All this so far is to explain what could play a part in my getting the following prompt, though i'm not sure. When i went to system preferences>icloud on my macbook hours later, there is a notification badge on the icloud icon in preference (a red circle with 1 in it) and the following notification above the list of apps that I can checkmark or not as to whether i want to sync their data to the cloud. The notification reads: "Update Apple ID Settings. Some account services will not be available until you sign in again." Okay, well i'm not signed out according to the same window, which at the lower left offers me a "Sign Out" button to click on should i want to do that. So why should i get this prompt? I didn't enter the wrong code too many times, though i did cancel out about three times before entering the code. When i did enter the code, everything proceeded without any problems and my iphone was activated and i have been using it and have synced apps to the cloud with it. Should i be worried that somebody other than me in some other location than me has failed an authentication prompt too many times? if its a valid notification, why didn't i get it at the time I was doing all this? And what services aren't available? Everything seems to be working and syncing fine.