A keychain state in which no key is available in memory to decrypt the passwords and other secrets protected by the keychain. When an application attempts to retrieve a secret from a locked keychain, the user is prompted for a password. The login keychain is unlocked automatically at login if its password matches that of the user’s login account. There is no way to extract secrets from a locked keychain without providing the keychain’€’sassword. All of a users keychains lock automatically when the user logs out.