[1] North Korea "operates a vast network of informants who monitor and report to the authorities fellow citizens they suspect of criminal or subversive behavior.
Upon returning to their rooms later in the evening, all the members of the Cuban delegation found spread out on their beds the complete collection of Kim Il-Sung's works in Spanish.
[7][8] North Korean officials stationed abroad generally have their internet access monitored by staff.
[7] Western companies have been criticized for selling surveillance technology to repressive regimes, including North Korea.
The Organization and Guidance Department of the Workers' Party of Korea is responsible for investigating and spying on senior officials.
[19] Ri Yong-ho, who held the post of Chief of the General Staff of the Korean People's Army, was 'purged' after he was reportedly recorded on wiretap complaining about Kim Jong Un.