"Major North Korean universities, such as the Kim Il-sung University and the Pyongyang University of Foreign Studies, send a few dozen exchange students to Peking University and other top-ranked Chinese universities each year."[1][2]

"North Korean hackers are sent vocationally to Shenyang, China for special training. They are trained to deploy malware of all types onto computers, computer networks, and servers."[3][4]

1: https://en.wikipedia.org/wiki/Koreans_in_China#North_Koreans...

2: https://web.archive.org/web/20090114201016/http://news.xinhu...

3: https://en.wikipedia.org/wiki/Lazarus_Group#Education

4: https://web.archive.org/web/20180621134306/https://www.scmp....