MtGox opens call centre after $500m Bitcoin loss

The MtGox Bitcoin exchange, which last week sought bankruptcy protection in Japan, opened a helpline for anxious customers on Monday after unveiling a massive loss in a possible theft.

Bitcoin tops $18,000 in debut on major bourse

Bitcoin surged past $18,000 after making its debut on a major global exchange but was trading lower on Monday, highlighting the volatility of the controversial digital currency that has some investors excited but others nervous.

Energy-efficient security mechanisms for digital currency

IT experts at Ruhr-Universität Bochum have developed a new cryptographic puzzle that might one day be used as a security mechanism for digital currency such as bitcoin. It consumes significantly less energy than the method ...

Nakamoto hires lawyer in Newsweek bitcoin fight

The man Newsweek claimed is the creator of bitcoin has hired a lawyer in an attempt to clear his name, repeating a denial he made to The Associated Press more than a week ago that he has never had anything to do with the ...

Angry Bitcoin investors demand answers at Tokyo creditors' meet

Bitcoin investors voiced anger Wednesday after the first creditors' meeting for failed Tokyo trading exchange MtGox, whose spectacular collapse hammered the digital currency's reputation and left a trail of unanswered questions.

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