the korea internet & security agency (한국인터넷진흥원, kisa) is the ministry of science and ict's sub-organization dealing with the allocation and maintenance of south korea's ipv4/ipv6 address space (and the related whois information), autonomous system numbers, and the .kr country code top-level domain (cctld), and also responsible for cybersecurity of the internet within south korea, and runs the korea computer emergency response team coordination center, a.k.a. krcert/cc, for the private sector of the country. other roles include, but are not limited to, promotion of safe internet usage and internet culture, detecting and analyzing malware/virus on the web, privacy protection, operating root ca, education on internet and cybersecurity, and various other cybersecurity issues.