http://www.switch-config.com/forum/switch-router-configuration-best/encrypt-all-plain-text-passwords-12/ Use the command service password-encryption to encrypt all paswords in plain text configuration file on Cisco network devices. In SwitchBackup, you can use predefined snippet Encrypt password and apply it to all devices in the domain at once. You can also use off-line analyzer to find in all configuration backups the devices, where are not service password-encryption command present.