This record tracks a ransomware attack claimed by the
nitrogen group against
Black Hills Bentonite. 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.
-70days
t1 · Published
t2 · Disclosed
Business Category
Manufacturing / Engineering
Published
November 06, 2025
Disclosed / Notified
Aug 29, 2025
Attack Summary
An American company founded in 1947. It mines and processes sodium bentonite, a natural clay used in well drilling, metal casting, and pond and landfill sealing.
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 bhbentonite.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
57+
found in Traditional breaches
107+
found in Ransomware leaks
Arandell Corp
medusa · ransomware
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
contacts_118.csv
Database World ROC · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Colonial Surety Company
medusa · ransomware
••• emails
contacts_109.csv
Database World ROC · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
+ 14 more leak sources locked
Leak volumes are locked
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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.