How We Know The Hackers That Infiltrated The New York Times Came From China

By now just about everyone knows that hackers from China attacked The New York Times and The Wall Street Journal. The obvious question is how they know that. Grady Summers of Mandiant, a cyber security firm hired by the Times, appeared on PBS Newshour last night to describe how they figured out it the attack was coming from China. "We take this issue of attribution very seriously--we don't just casually toss out a country or particular threat actor," Summers said. He then details how Mandiant's ...