This record tracks a ransomware attack claimed by the
medusa group against
Comisión Nacional de Valores. 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.
1101days open
t1 · Published
t2 · Pending
Business Category
Finance / Legal / Insurance
Disclosed / Notified
Not disclosed yet
Attack Summary
Regulatory agency in charge of authorizing IPOs and securing compliance by market participants with federal securities laws in the Argentine Republic. It supervises brokerage firms, issuers, stock exchanges, mutual funds and credit rating agencies. It is a member of IOSCO. More than 1.5TB of documents & database dumps has been uploaded.
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 cnv.gob.ar
— indexed by HaveIBeenRansom.
49
found in Infostealer logs
12
found in Traditional breaches
862
found in Ransomware leaks
Comisión Nacional de Valores
medusa · ransomware
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Exploit.in.rar
LKnet reserve chat · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
MyHeritage_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
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.