Undeterred by Senate hearings, the price of the virtual currency Bitcoin is soaring.

Right now, Bitcoin functions mainly among early Bitcoin adopters – who have pushed the currency’s value to a record level.

A virtual currency like Bitcoin has benefits to its users, including secrecy. Congress wants to understand its advantages and its security concerns.

U.S. regulators are trying to figure out how to handle Bitcoin, a virtual currency back by no government.

A crop of start ups with venture capital backing are trying to make Bitcoin more mainstream and easy to trade.

The Winklevoss twins of Facebook fame are pitching an investment fund for Bitcoin.

The Winklevoss twins are trying to set up a fund that will allow investors to trade Bitcoins as if they were stock.

The Justice Department has indicted seven people involved with the online-payment system Liberty Reserve, accusing them of allegedly laundering $6 billion for the criminal underworld. What risk does the crackdown pose for Bitcoin?

In a blow to the fledgling digital currency, U.S. government officials have frozen an account tied to the world's largest Bitcoin exchange.

The U.S. has made its first move to crackdown on Bitcoin, by using anti-money laundering laws to freeze funds of the biggest Bitcoin trading exchange.