These types create a safe password for your site. The passwords aren't saved anywhere. This is a major advantage: if you loose your device, your passwords cannot be stolen. You can use any other device to get all your passwords back, no need for restoring backups or any other pains. If you need to specify a custom password for your site, use one of these types. The site's password will be encrypted using your master password. The password for apple.com has changed. Don't forget to update the site with your new password! Your old password was: L4m3P4sSw0rD