Bitcoin and its value has been in the news a great deal recently, but, of course, it's not the only virtual currency.
The UK Treasury is considering adding virtual currency to the anti-money laundering regulations to help stop abuse.
A Treasury spokesman said that there were already "clear tax rules" for legitimate crypto-currency users.
"We also intend to update regulation to bring virtual currency exchange platforms into anti-money laundering and counter-terrorist financing regulation," he added. UK Reviewing Regulation for Bitcoin and Other Virtual Currencies [bbc.co.uk]