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Jensen Huang made his $172 billion fortune on AI chips. His family's $75 million gift to Vanderbilt argues art decides what technology is for

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The millennial generation has split, new Fed research shows: Those over 35 are edging toward boomer-style wealth, while everyone else falls behind

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The $39 trillion U.S. national debt isn’t as high as Japan’s and Singapore’s relative to economy size—and yet it's still worse somehow
Bitcoin

Former CEO of collapsed Mt.Gox bitcoin exchange arrested in Japan

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August 1, 2015, 12:29 PM ET
Tibanne CEO Mark Karpeles At Mt.Gox Bitcoin Exchange And Bitcoin Images
A twenty-five bitcoin is arranged for a photograph in Tokyo, Japan, on Thursday, April 25, 2013. The digital currency, which carries the unofficial ticker symbol of BTC, was unveiled in 2009 by an unidentified programmer, or group of programmers, under the name of Satoshi Nakamoto. Supply is capped at 21 million Bitcoins and managed by a software algorithm embedded into the digital currency?s design, rather than a monetary authority such as a central bank. Photographer: Tomohiro Ohsumi/Bloomberg via Getty ImagesPhotograph by Tomohiro Ohsumi — Bloomberg/Getty Images
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Mark Karpeles, the former head of defunct bitcoin exchange Mt. Gox, was arrested on Saturday in connection with the disappearance of hundreds of millions of dollars worth of the virtual currency, Japanese media reports said.

The French-born Karpeles, 30, is suspected of falsifying data on the outstanding balance of the exchange, at one point the world’s largest hub for trading the digital currency, they added.

Police were unable to immediately confirm the reports.

When it filed for bankruptcy in February 2014, Mt. Gox said 750,000 customer bitcoins and another 100,000 belonging to the exchange were stolen due to a software security flaw.

The lost funds represented the equivalent of $480 million at the time of the bankruptcyfiling. Mt. Gox also said more than $27 million was missing from its Japanese bank accounts.

Karpeles, who had blamed hackers for the loss, later said he had recovered 200,000 of the lost bitcoins.

Known as a self-proclaimed geek who said he was uncomfortable in his native France and hadn’t been back in years, Karpeles became interested in bitcoin when a customer of his web-hosting services wanted to pay in the virtual currency.

Mt. Gox subsequently shot from obscurity to dominate global trade in bitcoin, but as early as 2012 employees at the Tokyo-based exchange challenged Karpeles on issues such as whether client money was being used to cover costs.

Reporting by Elaine Lies.

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