This record tracks a ransomware attack claimed by the
8base group against
Calumet Civil Contractors, Inc.. 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.
-36days
t1 · Published
t2 · Disclosed
Business Category
Construction / Real Estate
Disclosed / Notified
Mar 03, 2024
Attack Summary
Calumet Civil Contractors performs all phases of site development and road construction, primarily in the Indianapolis area.calumetcivil.com
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 calumetcivil.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
134+
found in Traditional breaches
34+
found in Ransomware leaks
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••• emails
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play · ransomware
••• emails
AT&T 5 Million Leaked Database.7z
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
UnderArmour_BF_.7z.001
Database World ROC · breach
••• emails
+ 17 more leak sources 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.