In a recent interview with NPR, S.E.C. Chairman Gary Gensler says one of his top priorities is protecting amateur investors as his agency unveils a number of tough new rules and investigations.

Washington policymakers will soon start deciding on new rules for cryptocurrencies, setting up a fight between supporters and critics of the $2.5 trillion market.

A hamster named Mr. Goxx enters one of two tunnels in the his cage, which determines whether he will buy or sell. As of Friday, his portfolio is up nearly 20%, according to his Twitter account.

The country's top market watchdog has promised tougher scrutiny of virtual currencies, but we still don't know what will be unveiled.

Cybercriminals are using sophisticated malware to attack companies' IT systems, and they are demanding ransom payments in digital currencies

Weeks after setting a record high, the price for Bitcoin has fallen dramatically along with other cryptocurrencies over factors ranging from inflation to, yes, Elon Musk.

The automaker and the cryptocurrency have a lot in common: Soaring values, idealistic fans and plenty of skeptics. Now Tesla is investing in Bitcoin and plans to accept it for car purchases, too.