A lock screen from a cyber attack warns that data files have been encrypted on a laptop computer in this arranged photo in London, U.K. (Photographer: Simon Dawson/Bloomberg)

North Korea Hackers Discovered by U.S. Through Their Email Trail

(Bloomberg) -- Clues found in free email services such as Gmail helped U.S. investigators track down a North Korean hacker charged Thursday with crimes stemming from the 2014 attack on Sony Picture...

Bloomberg Quint

Add BloombergQuint App to Home screen.