Kou

Kou

Data Breach on February 28, 2023
Data Breach Report
Victimhyosung.jp
Threat ActorLockBit
Date DiscoveredFeb 28, 2023
DescriptionKou Co. Ltd. is a web agency that offers low-priced website production and system development.
Leak SizeUnknown

Credential Exposure for hyosung.jp

We've indexed 3 @hyosung.jp accounts from external breaches.

Last checked Aug 16, 2026

@hyosung.jp addresses from external breaches
Third-party breaches3 accounts · across 6 breaches · 3 with a plaintext password · most recent Jan 1, 2019
Combo lists1 accounts · most recent Jul 22, 2026

None of this is necessarily connected to the ransomware attack above.

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