Mind Your Wallet: Why the Underworld Loves Bitcoin

Criminals may already have made off with up to $500 million worth of bitcoins since the virtual currency launched in 2009—and you can double that if it turns out they emptied Mt. Gox. Internet ...

Microsoft Offers Hefty Bounties To Thwart Hackers

Microsoft Corp. is looking to recruit computer geeks in its ongoing efforts to protect Windows PCs from attacks, offering rewards of as much as $150,000 to anybody who helps identify and fix major ...

Bogus Tweet Briefly Disrupts Financial Markets

Markets for stocks, bonds, oil and commodities were briefly roiled on Tuesday after a bogus report of explosions at the White House. Shortly after 1 p.m. (1700 GMT), U.S. government debt prices ...