Summary
Written by ThreatClusterfrom file listing, victim profile, leak postUnderground claims to have stolen a broad trove from kc.co.kr, a South Korean manufacturing company, including financial documents and employees’ personal data. It also lists proprietary and confidential documents, NDAs, stock and employment documents, board and shareholder agreements, personnel tests data, internal incident reports, confidential presentations, restricted/secret documents, parts development documents and external confidential information. The leak post is published. The page identifies kc.co.kr as the victim, notes its South Korea location and revenue of $650 million, and mentions a named individual, Kyung Chang.
Describes what the group claims on its leak site. A listing is not confirmation that a breach occurred.
Victim profile
- People named
- Kyung Chang
What was taken
kc.co.kr | Underground store
Also stated on the leak page
Fields this group publishes that do not map to a standard column. Labels are the site's own.
- Kyung Chang
- heading on page
- Date on page
- 09/23/2026 08:26
- Show files link
- /packages/fb60ff1e-fd24-4931-8a61-ff6b7f885ee9/file_manager
- Download file listing link
- /packages/fb60ff1e-fd24-4931-8a61-ff6b7f885ee9?dir
- 대외비 (협력사 유출 절대 금지)
- present in data categories
Leak-site images (1)
Images from the victim's leak listing. Thumbnails scraped from the onion page are blurred by default — click a thumbnail to view.