A Slovenian cryptocurrency mining marketplace, NiceHash, said it lost about $64 million worth of bitcoin in a hack of its payment system, the latest incident to highlight risks that uneven oversight and security pose to booming digital currencies.
NiceHash matches people looking to sell processing time on computers in exchange for bitcoin.
There have been at least three dozen heists on exchanges that buy and sell digital currencies since 2011, including one that led to the 2014 collapse of Mt Gox, once the world’s largest bitcoin market.
More than 980,000 bitcoins have been stolen from exchanges, which would be worth more than $15