South Korea's Ministry of Science, ICT and Future Planning said the June 25 cyberattack against the Blue House, the Office for Government Policy Coordination, media servers, and other sites matched previously observed North Korean hacking methods. Investigators analyzed 82 malware samples, PC access logs, attack infrastructure, and prior North Korea-linked intrusion data, concluding the attackers had prepared for at least several months. The activity included website defacement, attempted disruption of government DNS services, DDoS activity using zombie PCs, overseas traffic disguised as service responses, hard-disk destruction on targeted servers, IP obfuscation, and log deletion. The ministry cited North Korea-used IP addresses, MBR destruction, deletion of key system files, attack-status monitoring methods, malware strings, and variants related to the March 20 cyberattack as supporting evidence. The incident is relevant to DPRK tracking because it combines destructive operations, disruption, and deception against symbolic South Korean government and media targets.