Editing login details on Mac
Table of Contents
How do I change the saved username or password on my Mac?
Mac OSX login username and passwords are stored in the Keychain files on Mac, these are located in ~/Library/Keychains, /Library/Keychains/ and /Network/Library/Keychains/. These files are viewed and edited through an application called Keychain Access, found in the Utilities folder in the Applications folder.