Bora Park, a research fellow at the Institute for National Security Strategy, analyzes the evolving North Korean cyber threat since the Gulf War in 1991 and discusses South Korea’s response measures. Park argues that cyberattacks have significantly diversified following the adoption of six UN Security Resolutions in 2016, coupled with strengthened international sanctions during the Park Geun-hye administration. The author elaborates that DPRK has employed malicious codes and other covert means not only for cyber espionage but also to damage South Korean economy and promote domestic polarization. Park urges the South Korean government to enact legal measures to counter the escalating DPRK cyber threat and recommends the establishment of a comprehensive cybersecurity sys-tem encompassing both the public and private sectors.