Security officials in South Korea, the United States and elsewhere say it is well known<br />that the North Korean authorities have long trained squads of hackers and programmers, and that when superiors in North Korea issue instructions, these hackers are activated to attack targets.<br />Focus Turns to North Korea Sleeper Cells as Possible Culprits in Cyberattack -<br />By CHOE SANG-HUN, PAUL MOZUR, NICOLE PERLROTH and DAVID E. SANGERMAY 16, 2017<br />SEOUL, South Korea — They take legitimate jobs as software programmers in the neighbors of their home country, North Korea.<br />North Korea may be politically isolated, but the country is suspected of having thousands of hackers capable<br />of carrying out global cyberattacks, like the recent ransomware attack in more than 150 countries.
