TECH

Everything You Need To Know About Jack Dorsey

Jack Dorsey, the founder and CEO of Square, walks during a break at the Allen & Company Sun Valley Conference in Sun Vall
Jack Dorsey, the founder and CEO of Square, walks during a break at the Allen & Company Sun Valley Conference in Sun Valley, Idaho, Wednesday July 10, 2013. (AP Photo/Rick Bowmer)

Jack Dorsey, of Twitter, is now making big money at Square--and is out to prove that he's more than a lucky man.

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