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DEF CON 21 vendor: EFF
The Electronic Frontier Foundation had a popular table in DEF CON 21's vendor hall, and posed for this excellent action shot. This year, EFF had a new "Encryption is Key" t-shirt for DEF CON 21, which kept hackers obsessed long after the conference was over.
See more photos and read much more about the activities, outrageous parties and more mischief at DEF CON 21 in:
The conference, with benefit parties and contests, raised over $100,000 for the EFF.