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Omikenshi

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against Omikenshi. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Window Zero

EXPOSURE GAP

Window Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.

166days open
t1 · Published t2 · Pending
Mar 23, 2026Not disclosed yet
Country
Japan
Business Category
Manufacturing / Engineering
Employees
101-1000
Discovered
2026-03-23
Published
March 23, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
g1AovGALpHNH

Attack Summary

omikenshi.co.jp zoominfo.com/c/omikenshi-co-ltd/372144961 Omikenshi specializes in the production of textiles, including cotton and yarn, as well as advanced processing technologies. The company also offers a range of lifestyle products, cosmetics, and software development services. Their intended clients include businesses seeking office supplies and electronic catalogs. Additionally, Omikenshi is committed to environmental sustainability and actively engages in eco-friendly practices

Leak Screenshots

SAMPLE

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finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for omikenshi.co.jp — indexed by HaveIBeenRansom.
0
found in Infostealer logs
45+
found in Traditional breaches
37+
found in Ransomware leaks
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