Rumors of North Korean leader Kim Jong-un's death captured international attention in October. Claims circulating on social media that he had died of a cerebral hemorrhage were dismissed by South Korea's National Intelligence Service (NIS) and finally put to rest when Kim made a surprise visit to Dandong, China, on Oct. 24. The episode should not be dismissed as mere misinformation. Kim's sudden death could trigger profound changes within North Korea and potentially destabilize the security order on the Korean Peninsula. Under Kim's rule, North Korea has steadily expanded its nuclear and missile capabilities while continuing illicit cyber operations, cryptocurrency theft and human rights abuses. Addressing these challenges ultimately requires fundamental change within the regime. Such change, however, is unlikely to emerge from within. Unlike the former communist states of Eastern Europe, North Korea offers little room for organized opposition or popular democratic movements. Kim's increasingly repressive rule, pervasive surveillance and stringent restrictions on outside information mak