The North Korean state-sponsored hacking group Kimsuky suffered a data breach when two hackers, Saber and cyb0rg, stole and leaked the group's data. The breach exposed phishing logs, source code of South Korea's Ministry of Foreign Affairs email platform, citizen certificates, phishing toolkits, and operational details. The leaked data, hosted on Distributed Denial of Secrets, includes internal tools, stolen data, and infrastructure details, potentially disrupting Kimsuky's ongoing campaigns. The breach highlights ethical opposition to Kimsuky's activities and provides insights into their methods.