This record tracks a ransomware attack claimed by the
medusa group against
Hinsdale School District . 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.
-53days
t1 · Published
t2 · Disclosed
Business Category
Education
Published
December 11, 2023
Disclosed / Notified
Oct 20, 2023
Attack Summary
Hinsdale School District is an educational institution. It offers primary & high school education, job openings, professional development, financial information, and assessment. The school district was established in 1879 and is headquartered in Hinsdal,New Hampshire, 03451, United States
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 d181.org
(matched from the company name)
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
2,794+
found in Traditional breaches
206+
found in Ransomware leaks
VerificationsIO_BF.7z.011
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pureincubation-com.7z.001
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••• emails
Exploit.in.rar
LKnet reserve chat · breach
••• emails
McGraw Hill, Inc. (mheducation.com)
shinyhunters · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Edmodo_BF.7z
Formaceft db · breach
••• emails
Canva_BF_.7z.001
Database World ROC · 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.