Focus Turns to North Korea Sleeper Cells as Possible Culprits in Cyberattack Since the 1980s, North Korea has been known to train cadres of digital soldiers to engage in electronic warfare. Now this force is under scrutiny. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Reaction After South Korea Ousts LeaderNigeria’s Battles With Boko Haram Scar the Land and Its PeopleWhen the Kids Crash Your BBC InterviewFormer N.Y. Comic, Reporting From AleppoIn Trump’s America, a Toned-Down Voice for Human RightsU.N. Accuses Turkey of Killing Hundreds of Kurds