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Toho Tenax America

royal

This record tracks a ransomware attack claimed by the royal group against Toho Tenax America. 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.

1174days open
t1 · Published t2 · Pending
Mar 30, 2023Not disclosed yet
Country
Japan
Business Category
Finance / Legal / Insurance
Employees
51-100
Discovered
2023-04-03
Published
March 30, 2023
Disclosed / Notified
Not disclosed yet
Victim ID
g1XIYyKEuuJu

Attack Summary

Toho Tenax America is a US branch of Japanese technology giant Teijin. They are a carbon manufacturer with facilities around the world. So, Teijin's American partners have lost their data and we obtained lots of corporate, financial, accounting information, employee information including photos.Much interesting is open to check!

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

Findings for teijincarbon.com — indexed by HaveIBeenRansom.
2
found in Infostealer logs
68+
found in Traditional breaches
14+
found in Ransomware leaks
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UnderArmour_BF_.7z.001
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eda.yandex.ru CSV.zip
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+ 7 more leak sources locked
Leak volumes are locked
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