https://www.washingtonpost.com/world/national-security/the-nsa-has-linked-the-wannacry-computer-worm-to-north-korea/2017/06/14/101395a2-508e-11e7-be25-3a519335381c_story.html
origin - http://www.pipiscrew.com/2017/06/the-nsa-has-linked-the-wannacry-computer-worm-to-north-korea/ the-nsa-has-linked-the-wannacry-computer-worm-to-north-korea