This record tracks a ransomware attack claimed by the
thegentlemen group against
Hillside Lumber. 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.
-35days
t1 · Published
t2 · Disclosed
Business Category
Construction / Real Estate
Disclosed / Notified
Apr 04, 2026
Attack Summary
hillsidelumber.com Hillside Lumber is a family-owned full-service building materials supplier established in 1979, based in Westbrook, Maine. The company serves builders, contractors, and DIY enthusiasts throughout Southern Maine with high-quality lumber, saw mill products, kitchen design, and building supplies. With 38 employees, they provide professional service to both construction professionals and homeowners.
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 hillsidelumber.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
118+
found in Traditional breaches
24+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Televerde
play · ransomware
••• emails
Arandell Corp
medusa · ransomware
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
contacts_18.csv
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
contacts_1.csv
Database World ROC · breach
••• emails
+ 16 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.