This record tracks a ransomware attack claimed by the
lockbit3 group against
bkf-fleuren.de. 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.
-77days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Published
December 24, 2023
Disclosed / Notified
Oct 09, 2023
Attack Summary
Unser Familienunternehmen BKF A. Fleuren GmbH wurde im Jahr 1974/75 als Fensterbauunternehmen gegründet und zählt heute rund 100 Mitarbeiter. Auf einer Produktionsfläche von über 20.000 Quadratmetern produzieren wir modernste Kunststofffenster und -T...
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.
Dark Web Exposure
Findings for bkf-fleuren.de
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
8
found in Traditional breaches
10
found in Ransomware leaks
WEICON
medusa · ransomware
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.