This record tracks a ransomware attack claimed by the
incransom group against
OAK PARK & RIVER FOREST HIGH SCHOOL. 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.
-2days
t1 · Published
t2 · Disclosed
Business Category
Education
Disclosed / Notified
May 14, 2025
Attack Summary
Welcome to Oak Park and River Forest High School!
Oak Park and River Forest High School provides a dynamic, supportive learning environment that cultivates knowledge, skills, and character and strives for equity and excellence for all students.
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 oprfhs.org
— indexed by HaveIBeenRansom.
5
found in Infostealer logs
2,946+
found in Traditional breaches
54+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
McGraw Hill, Inc. (mheducation.com)
shinyhunters · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Marcus & Millichap, Inc.
shinyhunters · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Canva_BF_.7z.001
Database World ROC · breach
••• emails
+ 17 more leak sources locked
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 20 sources.
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.