This record tracks a ransomware attack claimed by the
dispossessor group against
hgmonline.com. 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.
152days
t1 · Published
t2 · Disclosed
Business Category
Manufacturing / Engineering
Published
October 19, 2023
Disclosed / Notified
Mar 20, 2024
Attack Summary
HGM Associates Inc. provides in-house architectural, structural and civil engineering, landscape architecture, and surveying services.
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 hgmonline.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
413+
found in Traditional breaches
13+
found in Ransomware leaks
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Apollo.io DB 816millions.rar
Database World ROC · breach
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B F R e p o V 3 F i l e s · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
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••• emails
Mainelli Mechanical Contractors
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••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
+ 17 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.