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DEF CON 21 vendor: lock pick practice sets
If there was too much of a good thing on the DEF CON vendor floor, it was the crowded arena of selling locksport/lockpicking tools and practice sets. An extremely popular pasttime and hobby (especially for hacker kids), the vendors were all busy, nonstop - but it took some detective work to sort out the reputable vendors from the sea of sellers.
See more photos and read much more about the activities, outrageous parties and more mischief at DEF CON 21 in: