Russian hackers breached Dow Jones for trading tips: Bloomberg

(Reuters) - Russian hackers had infiltrated Dow Jones & Co to steal information to trade on before it was made public, and the breach was "far more serious than a lower-grade intrusion" disclosed by the company, Bloomberg reported, citing sources. The Federal Bureau of Investigation, Secret Service and the Securities and Exchange Commission are leading an investigation, which began at least a year ago, Bloomberg reported. Dow Jones, the publisher of the Wall Street Journal, disclosed a breac