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Mandom Corporation

worldleaks

This record tracks a ransomware attack claimed by the worldleaks group against Mandom Corporation. 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.

299days open
t1 · Published t2 · Pending
Aug 21, 2025Not disclosed yet
Country
Japan
Business Category
Communication / Marketing
Employees
+1000
Discovered
2025-10-11
Published
August 21, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
5fwWHrQoI4XU

Attack Summary

[AI generated] Mandom Corporation is a Japanese company specializing in the production and sale of cosmetics, perfume, and health products. Originated in Osaka, it offers leading brands like Gatsby and Lucido-L. With a focus on personal care products for men, Mandom also caters to women's beauty needs. This firm is recognized for creating innovative, high-quality products that promote comfort and style.

Leak Screenshots

SAMPLE

Proof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.

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

Cross-referenced against HaveIBeenRansom's dark-web index of ransomware leaks, breaches & infostealer logs.
0
found in Infostealer logs
0
found in Traditional breaches
0
found in Ransomware leaks
Emails exposed
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External
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••• emails
Full exposure is locked
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