A hack left the operator of a now-defunct cryptocurrency platform without enough bitcoins to cover what he owed users, prompting him to lie to regulators, prosecutors said.

Martin Shkreli, once dubbed "the most hated man in America," is now a convicted felon.

One of the worlds biggest banks, along with brokerages and a major business news publication, were targets of hackers, the U.S. said Tuesday in announcing charges against four men.

American International Group Inc. won court approval of a $970.5 million settlement with investors who accused it of misleading them about risks tied to subprime mortgages.

Trendon Shavers, founder of Bitcoin Savings and Trust, was charged with fraud and accused of masterminding a $4.5 million Ponzi scheme.

The probe concerns some of the largest hedge funds and asset-management advisers, the SEC said.