TOKYO -- Cryptocurrency poster child bitcoin dropped by more than 10% in a day to a two-month low of around $6,650 at one point Monday, following news of a cybertheft at South Korean exchange operator Coinrail and suspicions of price-fixing on U.S. futures.
Several types of virtual coin were stolen Sunday or earlier, Coinrail said on its website, adding that it was cooperating with investigators to identify the hackers. Industry watchers believe the stolen assets were worth about 40 billion won ($37.2 million), South Korea's Yonhap News Agency said Monday.