This record tracks a ransomware attack claimed by the
qilin group against
San Silvestre 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.
-32days
t1 · Published
t2 · Disclosed
Business Category
Education
Published
January 11, 2026
Disclosed / Notified
Dec 11, 2025
Attack Summary
San Silvestre School was named by the qilin ransomware group as a targeted organization. It operates in the Education sector. The affected entity is based in Peru. The incident was first observed on January 11, 2026. Breach House tracks this attack from public ransomware leak-site postings for threat-intelligence purposes.
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 sansilvestre.edu.pe
— indexed by HaveIBeenRansom.
35
found in Infostealer logs
1,038+
found in Traditional breaches
3+
found in Ransomware leaks
Canva_BF_.7z.001
Database World ROC · breach
••• emails
Canva_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Neopets_BF.7z
TheUnderground - Reborn · breach
••• emails
Tumblr_BF.7z
TheUnderground - Reborn · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
LuminPDF_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
Neopets_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 17 more leak sources 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.