The U.S. Internal Revenue Service (IRS) said Monday a hacking attack into one of its computer databases revealed in May was much more extensive than previously thought, with nearly three times as many taxpayers hit by data theft.
China on Monday downplayed an accusation by U.S. Democratic presidential candidate Hillary Clinton that Beijing had tried to "hack into everything that doesn't move in America".
Two Vietnamese citizens and a Canadian have been charged with running a massive cyberfraud ring that stole 1 billion email addresses, then sent spam offering knockoff software products, the U.S. Department of Justice said on Friday.