A keychain password is the master password for your Mac's "Keychain Access" app, which stores your usernames and passwords.

Cloud Keychain saves a user's passwords, credit card information, and other sensitive data and syncs it across Apple devices.

Has your Mac suddenly started asking you for account and Wi-Fi passwords it never used to require? Is your Mail app asking you to enter the password relentlessly ...

Save and manage your passwords in one place with Apple's Passwords app on iPhone, iPad, and Mac. Organize, manage, and delete ...