THE US has been targeted by a cyber attack in a "possible serious breach", according to sources. Fox News' White House Correspondent Jacquie Heinrich tweeted: "The State Department has been hit by a cyber attack, and notifications of a possible serious breach were made by the Department of Defense Cyber Command. "It is unclear when the breach was discovered, but it is believed to have happened a couple weeks ago. "A source familiar tells Fox the State Department’s ongoing mission to evacuate Americans and allied refugees in Afghanistan “have not been affected”. "The extent of the breach, investigation into the...