Why am I asked for my Keychain password when the keychain is already unlocked?
This behavior started suddenly after migrating to a new machine.
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Sign up to join this communityThis happened to me after changing my login password. I fixed it thanks to article on Apple support: https://discussions.apple.com/thread/6724601
Simply I had to change password for my "login" keychain.
But I was asked to input password to open "Local items" keychain. I solved that issue exactly according this post: http://support.apple.com/en-us/HT203897 You need to open folder ~/Library/Keychains/, find and delete folder with name similar to "A8F5E7B8-CEC1-4479-A7DF-F23CB076C8B8" and restart your Mac immediately.
I had to fixed both "login" and "Local items" prompt to solve it. Only changing password for "login" keychain seemed not to work although it should according Apple support. But I haven't test it heavily.
Hope it helps.
Not sure, but it's a protection of private data against other people in your house who use the same computer. When I open my mailboxes the system asks for it so my wife can't read my mail since she does not know this password.
The problem is often caused by the migration to a new mac I do not know exactly why but I know how to fix it. you have to reset your login keychain :
In Keychain Access, choose Preferences from the Keychain Access menu
click the Reset My Default Keychain button. This will remove the login keychain and create a new one with the password provided.