Not Available Direct - For Corporate Accounts Only. The Targus DEFCON® T-Lock Serialized Combo Cable Lock is a serialized lock with a pre-set combination. This Targus laptop security product finally provides a computer security solution for complete asset protection. The DEFCON® T-Lock Serialized Combo Cable Lock is 6.5 feet of cut-resistant, galvanized steel cable that loops around any secure object and easily attaches to your laptop computer's lock slot. Our lock features a pre-set combination lock in which your IT Manager has access to all combinations via a secure password protected web site. The lock is the first laptop computer security product to offer the benefits and convenience of a keyless security solution.