White House press briefing on the attribution of the WannaCry malware attack to North Korea (December 19, 2017; via Wayback)
Microsoft/Facebook disruption of North Korean cyber exploits still infecting computers · Last week (December 2017)
Last week, Microsoft and Facebook and other major tech companies acted to disable a number of North Korean cyber exploits and disrupt their operations as the North Koreans were still infecting computers across the globe.