This record tracks a ransomware attack claimed by the
coinbasecartel group against
Correios. 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.
-67days
t1 · Published
t2 · Disclosed
Business Category
Transportation / Travel / Logistics
Disclosed / Notified
Feb 01, 2026
Attack Summary
[AI generated] Correios, officially known as Empresa Brasileira de Correios e Telégrafos, is the Brazilian state-owned postal service company. Operating under the federal government of Brazil, it provides mail delivery, logistics, and financial services across the country. Founded in 1969, Correios handles package shipping, express delivery, money orders, and e-commerce logistics, serving millions of customers nationwide through thousands of agencies and distribution centers.
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 correios.com.br
— indexed by HaveIBeenRansom.
330,837
found in Infostealer logs
2,990+
found in Traditional breaches
10+
found in Ransomware leaks
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
vivo_leak.rar
Anonymous Russia БД · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
TAPAir_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
intelx.zip
Database World ROC · 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.