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March 31, 2015. The Targus Defcon CL lock is used to secure a notebook computer to a table or other surface. The lock uses a user programed combination to secure the computer. To remove the lock easily, you must have access to the lock's combination. Targus' website notes that 10,000 combinations are possible for the Defcon CL lock.
It's not entirely necessary to have a 'feeler strip'.
I also had some of these lying around at the office and nobody knew the combinations...
Hold the lock with a bright light shining on it.
If you pull a roller to the side, you should see the lock's shaft.
Slowly rotate that roller, watching the shaft, you will eventually see the notch in the shaft. On mine it was not as shiny as the shaft and could clearly be seen.
Repeat this for all rollers.
![Defcon Defcon](/uploads/1/2/5/8/125848418/665271037.jpg)
The numbers aligning with the notches are the combination for that lock.
Rotate the code to be in the code window and the lock should open.
I just did this on one of my locks; it has taken me longer to type this message then it did to work out the combination...