The Targus Defcon SCL (Serialized 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 Targus Defcon Serialized Cable Lock (SCL) is a cut-resistant, galvanized steel cable that loops around any secure object and easily attaches to your laptop computer's lock slot. The Defcon SCL features a pre-set combination lock. The Defcon SCL is the first laptop computer security product to offer the benefits and convenience of a keyless security solution.