This record tracks a ransomware attack claimed by the
medusa group against
Unimed Blumenau. 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.
-31days
t1 · Published
t2 · Disclosed
Business Category
Healthcare / Pharma
Published
November 05, 2023
Disclosed / Notified
Oct 06, 2023
Attack Summary
Unimed Blumenau is a company that operates in the Health, Wellness and Fitness industry. It employs 1,001-2,000 people and has $500M-$1B of revenue. The company is headquartered in Blumenau, Santa Catarina, Brazil
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 unimedblumenau.com.br
— indexed by HaveIBeenRansom.
423
found in Infostealer logs
265+
found in Traditional breaches
4+
found in Ransomware leaks
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
Unimed do Brasil
sarcoma · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Hotel Urbano.rar
Anonymous Russia БД · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Canva_BF_.7z.001
Database World ROC · breach
••• emails
+ 16 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.