According to Foresight News, a significant data breach has reportedly affected a member of the North Korean hacker group Kimsuky APT. The breach, which occurred in early June 2025, resulted in the exposure of hundreds of gigabytes of internal files and tools. Analysis of the leaked documents reveals the group's sophisticated backdoor operations, phishing frameworks, and reconnaissance activities.
The compromised data is believed to have originated from two systems operated by an individual using the alias 'KIM.' One system is a Linux development workstation running Deepin 20.9, while the other is a public-facing VPS used for spear-phishing activities. This incident highlights the vulnerabilities within the group's infrastructure and provides insight into their cyber operations.