Authorities investigating a suspected bitcoin-related scam centred in Austria have asked Interpol to help determine whether there might be perpetrators - and victims - of the scheme across Europe.
The growth of bitcoin is fueling speculation and debate about the environmental impact of the energy needed to power the virtual currency in the era of climate change. Some questions and answers about the issue:
A sharp fall in the value of Bitcoin may cause other cryptocurrencies to crash, but is unlikely to have a significant impact on traditional assets, according to new research published in the journal Economics Letters.
Bitcoin plunged more than 20 percent to fall below $6,000 on Tuesday, its latest sharp loss following a series of setbacks, with a global stock market collapse fuelling the selling.
Lloyds Banking Group on Monday joined major US banks in banning purchases of bitcoin and other cryptocurrencies via credit card amid debt and security concerns.
Japan said Monday it would impose administrative measures on virtual currency exchange Coincheck after hackers stole hundreds of millions of dollars in digital assets from the Tokyo-based firm.
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.