There has been a sharp drop in the price of bitcoin and other virtual currencies after South Korean cryptocurrency exchange Coinrail was hacked over the weekend.
A tweet from Coinrail confirming the cyber-attack sent the price of bitcoin tumbling 10% on Sunday to two-month lows.
The world’s best-known cryptocurrency lost $500 (£372) in an hour, dropping to $6,627 on the Luxembourg exchange Bitstamp, while most other digital currencies also recorded large losses.
Cryptocurrencies have a mysterious allure – but are they just a fad?
Robert Shiller
Read more
The latest attack highlights the lack of security and weak regulation of global cryptocurrency markets.
Coinrail later said in a statement on its website that its system was hit by “cyber intrusion” on Sunday, causing a loss for about 30% of the coins traded on the exchange. It did not quantify the value, but the local Yonhap news agency estimated that about 40bn won (£27.8m) worth of virtual coins was stolen.
Coinrail said: “Seventy percent of total coin and token reserves have been confirmed to be safely stored and moved to a cold wallet [not connected to the internet]. Two-thirds of stolen cryptocurrencies were withdrawn or frozen in partnership with related exchanges and coin companies. For the rest, we are looking into it with an investigative agency, related exchanges and coin developers.”
Police have begun an investigation, according to the Korea Herald, which cited a spokesperson as saying: “We secured the access history of Coinrail servers and we are in the process of analysing them.”
Bitcoin was trading at about $6,750 on Monday afternoon – down from an all-time peak of almost $20,000 in the week before Christmas. In February, it fell to $5,900.
