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Heinrich Kopp

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against Heinrich Kopp. 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.

126days open
t1 · Published t2 · Pending
Apr 27, 2026Not disclosed yet
Country
Germany
Business Category
Manufacturing / Engineering
Employees
101-1000
Discovered
2026-05-06
Published
April 27, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
9N3ZZNRHXxDf

Attack Summary

kopp.eu https://www.zoominfo.com/c/heinrich-kopp-gmbh/372789517 Heinrich Kopp GmbH, headquartered in Kahl am Main, Germany, has been developing and manufacturing electrical installation products "Made in Germany" since 1927. The company offers a catalog of over 7,000 products — from simple plugs and switches to Smart Home and wireless radio systems. Kopp is one of the leading electrical installation brands in German-speaking countries, serving both professional electricians and DIY customers. In 2020, the company launched a new "Energy & Home Automation" division, expanding into the smart home market

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 kopp.eu — indexed by HaveIBeenRansom.
0
found in Infostealer logs
130+
found in Traditional breaches
13+
found in Ransomware leaks
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
WEICON
medusa · ransomware
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
LKnet reserve chat · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
+ 17 more leak sources locked
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