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Two of the country's biggest hacking conferences are kicking off in Las Vegas this week: Black Hat and Defcon. The biggest difference between the two? This year organizers at Defcon officially disinvited the Feds in the wake of NSA surveillance revelations. While Black Hat's keynote speaker will be none other than NSA Director General Keith Alexander.

Anup Ghosh, CEO of cybersecurity firm Invincea and is going to Black Hat, joins Marketplace Tech host Ben Johnson to discuss.

Follow Ben Johnson at @@TheBrockJohnson