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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
Free shipping on orders over $35 Free shipping on orders over $35
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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.


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.

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
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