This record tracks a ransomware attack claimed by the
direwolf group against
Universidad Mayor. 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.
-73days
t1 · Published
t2 · Disclosed
Business Category
Education
Disclosed / Notified
May 09, 2025
Attack Summary
Universidad Mayor (UM), acreditación institucional con la Middle States Commission on Higher Education de los EE.UU (MSCHE).
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 umayor.cl
— indexed by HaveIBeenRansom.
1,281
found in Infostealer logs
1,312+
found in Traditional breaches
228+
found in Ransomware leaks
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Televerde
play · ransomware
••• emails
Sonda
medusa · ransomware
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Exploit.in.rar
LKnet reserve chat · 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.