A secret that is encrypted and protected by the keychain, plus its associated attributes and access object. Each keychain item has a class that determines what attributes it has; for example Internet password items include an IP address attribute. The password or other secret stored as a keychain item is encrypted and is inaccessible when the keychain is locked. When the keychain is unlocked, the secret can be read by the trusted applications listed in the item’s access object and by the user (with the Keychain Access utility). The attributes are not currently encrypted.