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Listed on a ransomware leak site

Sungwoo Co., Ltd

Sungwoo Co., Ltd was listed on the Beast leak site on Apr 3, 2026. Information as of Oct 19, 2026.

Updated continuously · figures as of Oct 19, 2026
Claimed by
Beast
First listed
Apr 3, 2026
Claims recorded
1

Leak-Site Claim.

BeastConfirmed claim
Posted on the leak site
Date not shown
Collected by Brandefense
Apr 3, 2026
Data claimed
200 GB
Leak-site post text, written by the group
Overview: Sungwoo Co., Ltd. is a South Korean manufacturer primarily engaged in the production and sale of secondary battery components (rechargeable batteries). Key Products: The company specializes in safety components for lithium-ion batteries, such as Top Cap Assemblies, which prevent explosions by venting gas and cutting off current during overcharging. They also produce precision electrical parts for mobile devices (like wireless earphones) and electric vehicles (EVs). Market Position: Founded in 1992 and headquartered in Gumi, the company serves as a key supplier in the EV and consumer…

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.