This record tracks a ransomware attack claimed by the
medusa group against
Mundelein Park & Recreation 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.
-76days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Published
February 24, 2025
Disclosed / Notified
Dec 11, 2024
Attack Summary
Mundelein Park & Recreation District (founded in 1954) provides 33 park sites offering over 735 acres of open space, playgrounds, ball fields, lakes, and trails. Mundelein Park & Recreation District corporate office is located in 1401 N Midlothian Rd, Mundelein, Illinois, 60060, United States and has 437 employees. The total amount of data leakage is 118.20 GB
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 mundeleinparks.org
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
252+
found in Traditional breaches
50+
found in Ransomware leaks
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TheUnderground - Reborn · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Access Intelligence
play · ransomware
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
National Business Furniture
medusa · ransomware
••• emails
Arandell Corp
medusa · ransomware
••• 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.