This record tracks a ransomware attack claimed by the
qilin group against
Jeff D'Ambrosio. 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.
-54days
t1 · Published
t2 · Disclosed
Published
December 12, 2025
Disclosed / Notified
Oct 20, 2025
Attack Summary
Jeff D'Ambrosio was named by the qilin ransomware group as a targeted organization. It operates in the Other sector. The affected entity is based in United States. The incident was first observed on December 12, 2025. This record is maintained by Breach House as part of its ongoing monitoring of public ransomware leak sites.
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 jeffdambrosio.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
31+
found in Traditional breaches
0+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
USA B2B EMAIL_OLD .csv
TheUnderground - Reborn · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
filtered_emails_filtered.txt
DL| Database catalog · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
usa.gov - USA Business & Investor Database.rar
Database World ROC · breach
••• emails
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.