This record tracks a ransomware attack claimed by the
qilin group against
The Michelson Organization. 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.
-58days
t1 · Published
t2 · Disclosed
Business Category
Construction / Real Estate
Disclosed / Notified
Feb 20, 2025
Attack Summary
Michelson Commercial Realty and Development L.L.C. and Knapp Development have managed the development of Sumner Park since its inception. The development team has extensive experience in developing real estate on a national basis. Since 1927, ...
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 michelsonrealty.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
1,493+
found in Traditional breaches
295+
found in Ransomware leaks
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••• emails
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TheUnderground - Reborn · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · 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.