Japan-based virtual currency exchange Coincheck said Sunday it will refund about $400 million to customers after hackers stole hundreds of millions of dollars' worth of digital assets.
Cryptocurrencies fell Friday after Japan-based digital exchange Coincheck suspended client deposits and withdrawals for virtual currencies except bitcoin.
The British government called Thursday for global regulation of controversial virtual currency bitcoin, adding that the G20 would address the topic in March.
Devices used to manage accounts on the innovative payment system Bitcoin could be improved to provide better protection against hackers, research suggests.
Nordea, the Nordic region's biggest bank, said Monday it would bar employees from trading in bitcoin and other cryptocurrencies as of February 28 due to the unregulated nature of the market.
It may be a while, if ever, before investors can buy an exchange-traded fund made up of bitcoin and other digital currencies.
France and Germany said Thursday plan to make a joint proposal on regulating bitcoin at a meeting of finance ministers from the G20 countries in March.
China is preparing for a new crackdown on cryptocurrency, planning to stamp out remaining trading in the country, according to state media.
The volatility of the digital currency markets was on display again Wednesday, as bitcoin briefly fell below $10,000 before rebounding back above $11,000 in the U.S. afternoon.
Prices of bitcoin and other digital currencies have skidded after South Korea's top financial policymaker said Tuesday that a crackdown on trading of crypto currencies was still possible.