Targus DEFCON Cable LockThe DEFCON Mini Combo Cable Lock is a sturdy locking device with a pass through loop on one end and a lock on the other. The 6. 5 foot durable galvanized steel from which the cable is constructed is both cut and rust resistant so that it's nearly impossible to destruct. And if someone attempts to remove the lock, it will noticeably damage the computer, alerting you to potential theft and preventing resale. Each lock is assigned a unique combination