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UniCursos, Brazil

tengu

This record tracks a ransomware attack claimed by the tengu group against UniCursos, Brazil. 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.

-61days
t1 · Published t2 · Disclosed
Oct 23, 2025Aug 24, 2025
Country
Brazil
Business Category
Public Sector
Employees
51-100
Discovered
2025-10-23
Published
October 23, 2025
Disclosed / Notified
Aug 24, 2025
Victim ID
9uGB3Jl5JKa0

Attack Summary

UniCursos, Brazil - Offers preparation courses for public sector exams in São José dos Campos and surrounding areas in the state of São Paulo.

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.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for unicursos.com.br — indexed by HaveIBeenRansom.
29
found in Infostealer logs
30+
found in Traditional breaches
0+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum 🪾 · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
Hotel Urbano.rar
Anonymous Russia БД · breach
••• emails
vivo_leak.rar
Anonymous Russia БД · breach
••• emails
Twitter Full DB.part01.rar
Database World ROC · breach
••• emails
Untitled leak
— · breach
••• emails
MySpace_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 7 more leak sources locked
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Visit Website Original Post View Group: tengu

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