Bitcoin exchange CEO arrested by Japanese police

GMT 09:05 2015 Saturday ,01 August

Arab Today, arab today Bitcoin exchange CEO arrested by Japanese police

Bitcoin exchange CEO Mark Karpeles
Tokyo - AFP

Japanese police on Saturday arrested Mark Karpeles, head of the MtGox Bitcoin exchange, after a series of fraud allegations lead to its spectacular collapse and hammered the digital currency's reputation.

A spokesman for the Tokyo Police said France-born Karpeles, 30, was suspected of manipulating data on the exchange's computer system in 2013 to falsely create about $1.0 million.

Earlier Saturday, Kyodo News and other Japanese media said police were also investigating his possible involvement in the 2014 disappearance of nearly $390 million worth of the virtual currency, at current exchange rates.

It was not immediately clear if there would be more charges against Karpeles, who reportedly denied the allegations.

The global virtual currency community was shaken by the shuttering of MtGox, which froze withdrawals in early 2014 because of what the firm said was a bug in the software underpinning Bitcoins that allowed hackers to pilfer them.

On Saturday, local media, citing police, said investigators suspect Karpeles knew details about the missing Bitcoins which were reportedly transferred to an account controlled by him -- without notifying depositors.

The top-selling Yomiuri newspaper also said police suspect that Karpeles repeatedly transferred clients' Bitcoins into his own account for speculative trading.

The exchange -- which once boasted of handling around 80 percent of global Bitcoin transactions -- filed for bankruptcy protection soon after the cyber-money went missing, admitting it had lost 850,000 coins worth 48 billion yen ($387 million). They were worth about $480 million at the time of the disappearance.

Karpeles later said he had found some 200,000 of the lost Bitcoins in a "cold wallet" -- a storage device such as a memory stick that is not connected to other computers.

- No regulations -

Bitcoins are generated by complex chains of interactions among a huge network of computers around the planet and are not backed by any government or central bank.

A cloud has been hanging over the Tokyo-based exchange and Karpeles as investors demanded answers, and called on the firm to publicise its data so that hackers around the world can help analyse what happened at MtGox.

"They say it's under investigation. That's all they say," a French investor told AFP last year at a creditors' meeting in Tokyo.

"They seem to refuse to make public more precise information about MtGox's own (information) and how and when it was stolen, if it was really stolen."

Karpeles had reportedly refused to travel to the United States, where he was being asked to appear for questioning in connection with MtGox's collapse.

Regulators have scrambled to respond to the use of Bitcoins, with the European Banking Authority last year calling on the region's banks not to deal in virtual currencies until rules are developed to stop them being abused.

Launched in 2009 by a mysterious computer guru, Bitcoin offers a largely anonymous payment system and can be stored either virtually or on a user's hard drive.

Backers say virtual currencies allow for an efficient and anonymous way to store and transfer funds online.

But regulators argue the lack of legal framework governing the currency, the opaque way it is traded and its volatility make it dangerous.

After MtGox, Bitcoin's reputation was also damaged when US authorities seized funds as part of an investigation into the online criminal enterprise Silk Road that made millions of dollars from drug sales and other criminal enterprises.

During the trial of the man accused of masterminding the network, a witness said investigators once suspected Karpeles of running the online black market -- a claim he firmly denied.

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