This record tracks a ransomware attack claimed by the
medusa group against
Uniondale 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.
1156days open
t1 · Published
t2 · Pending
Business Category
Education
Disclosed / Notified
Not disclosed yet
Attack Summary
Uniondale School District is a district located in Uniondale, NY. They are comprised of 9 different schools around the area: California Avenue School, Grand Avenue School, Northern Parkway School, Smith Street School, Walnut Street School, Lawrence Road Middle School, Turtle Hook Middle School, Uniondale High School and Cornelius Court School. As of the 2023 school year , 6523 students are enrolled in Uniondale School District.
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 uniondaleschools.org
— indexed by HaveIBeenRansom.
5
found in Infostealer logs
405+
found in Traditional breaches
2,595+
found in Ransomware leaks
Uniondale School District
medusa · ransomware
••• emails
McGraw Hill, Inc. (mheducation.com)
shinyhunters · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
2844Breaches_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.