This record tracks a ransomware attack claimed by the
medusa group against
Appalachian Regional Commission. 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.
-84days
t1 · Published
t2 · Disclosed
Business Category
Public Sector
Disclosed / Notified
Jan 31, 2025
Attack Summary
Appalachian Regional Commission is an economic development agency of the federal government and 13 state governments focusing on 423 counties across the Appalachian Region. Appalachian Regional Commission corporate office is located in 1666 Connecticut Ave NW Ste 700, Washington, District of Columbia, 20009, United States and has 110 employees.
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 arc.gov
— indexed by HaveIBeenRansom.
4,974
found in Infostealer logs
889+
found in Traditional breaches
71+
found in Ransomware leaks
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · 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
National Business Furniture
medusa · ransomware
••• emails
Access Intelligence
play · ransomware
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.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.