According to The New York Times, the code was installed with great stealth, sometimes flowing through routers and other common internet-connected consumer devices to make the intrusion harder to track.
Washington [US], January 21 (ANI): American intelligence agencies welcome the new year with a new worry that Islamist terror groups based in Afghanistan may be in a position to launch an attack against the United States between six months to a year.
Beijing [China], June 22 (ANI): China has said the mistrial of a Chinese professor in the US over spying accusation has "smashed" the credibility of American intelligence agencies and has exposed "consistent tactics used by them in conducting investigations based on the presumption of guilt"