Source: rss.wn.com
The frenzy surrounding bitcoin ramped up further Thursday as the virtual currency soared above US$15,000 for the first time, just days before it starts trading on major US exchanges. At the same time, there are fresh concerns about the security of bitcoin and other virtual currencies after NiceHash, a company that mines bitcoins on behalf of customers, said it is investigating a breach that may have resulted in the theft of bitcoin valued at about $70 million. Research company Coindesk...

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