Access to an NK News data tool that allows researchers to visualize North Korean media reporting has been blocked by South Korean authorities for breaching a 1948 law designed to "to restrict anti-state acts that endanger national security".

Since Friday, users from South Korea have been unable to access the NK News KCNA Watch system, redirected instead to an embedded Korea Communications Standards Commission (KSCS) warning screen that is commonly shown when users try and access North Korean owned websites or pornography from South Korea.