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J Derenzo

sinobi

This record tracks a ransomware attack claimed by the sinobi group against J Derenzo. 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.

385days open
t1 · Published t2 · Pending
Aug 13, 2025Not disclosed yet
Country
United States
Business Category
Construction / Real Estate
Employees
51-100
Discovered
2025-08-14
Published
August 13, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
eHlpnEyIAAox

Attack Summary

J. Derenzo Co. has been one of New England’s premier site work contractors for over 75 years. The team’s experience ranges from large scale rural site clearing to some of the most complex, tight-site, deep hole excavations in downtown Boston. Our diversity of expertise has been a key driver in amassing a portfolio of work that is second-to-none in the industry.

Leak Screenshots

SAMPLE

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finance_2024.xlsx
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contract_signed.pdf
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Dark Web Exposure

Findings for jderenzo.com — indexed by HaveIBeenRansom.
0
found in Infostealer logs
827
found in Traditional breaches
215
found in Ransomware leaks
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum 🪾 · breach
••• emails
Tocci Building Corporation
medusa · ransomware
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Arandell Corp
medusa · ransomware
••• emails
Database World ROC · breach
••• emails
Database World ROC · breach
••• emails
Database World ROC · breach
••• emails
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Visit Website Original Post View Group: sinobi

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