Safari prompting for local user account password on Apple websites When navigating to an Apple login page in Safari on macOS 10.15 it shows a Apple ID login window and prompts me to enter my local user account password (not my Apple ID password). From what I can tell, this is a Safari feature and is not a part of the webpage.




Is there anyway to disable this? I have all Safari autofill settings turned off as I use a third-party password manager. It is super annoying to wait several seconds for this window to be displayed and then have to click "cancel" before I can log in. 

EDIT

It appears there is no way to disable this behavior. I have opened an issue in Feedback Assistant (FB7582188). Feel free to dupe it. https://openradar.appspot.com/radar?id=5003428010917888
This is a new feature with safari on macOS and Catalina when you are signed in to your iCloud / AppleID on trusted and keychain synchronized devices when communicating to some Apple secure services online. 

Your local admin password unlocks they key store and sends a secure token rather than your iCloud password to authenticate you through Safari to Apple’s web site. 

Ways to opt out:


Sign out of iCloud on that Mac. 
Use a different browser.