The DEFCON® 1 Ultra Laptop Computer Security System (PA400U) has been discontinued and may no longer be available for sale online or in store.
Consider this similar product instead:
DEFCON® CL Laptop Computer Cable Lock (PA410U)

DEFCON® 1 Ultra Laptop Computer Security System


Get advanced protection anywhere with an easy to use security system that safeguards laptops in public settings.

Model Number
Limited 1-Year Warranty
Works With
Laptops with a standard lock slot

The fastest growing fear among mobile professionals today is laptop theft - help protect your laptop with the Targus DEFCON 1 Ultra. You can now relax in airports, restaurants, and other public places with the DEFCON® 1 on guard. This system combines a stainless steel cable, motion sensor technology, and a 95dB alarm to create a combination locking alarm system that easily attaches to your laptop or carrying case in any setting.

The DEFCON 1 Ultra features a four-digit re-settable combination lock with up to 10,000 unique combinations. A second level of security is provided by the high decibel alarm that is triggered if the cable is severed or the motion sensor is activated.

Works With:
Laptops with a standard lock slot
Slot Type:
Package Dimensions:
7.5" x 9.55" x 2.25" (W x H x D)
Package Weight:
0.60 lbs
Limited 1-Year Warranty
TAA Compliant:

Alarm is activated when cable is severed or when motion sensor is armed and triggered

Easily attaches to your carrying cases, luggage, or laptops equipped with a security lock slot

LED indicates alarm status

Re-settable 4-digit combination lock- up to one of 10,000 unique combinations available

Retractable steel cable retracts into plastic housing at the press of a button

Lock Slot

Lock attaches to your laptop using the rectangular Lock Slot (standard on all laptops); impeding theft and acting as a great deterrent.


Kevlar® reinforced cable offers greater resistance to the more determined thief.

Security Lock

Security mechanism is locked and unlocked using a preset combination.