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Listed on a ransomware leak site

Unimed do Brasil

unimed.coop.br

Unimed do Brasil was listed on the Sarcoma and LockBit 3.0 leak site on Nov 1, 2023. Brandefense has recorded 2 separate claims against it. Information as of Oct 19, 2026.

Country: BrazilIndustry: Healthcare
Updated continuously · figures as of Oct 19, 2026
Claimed by
Sarcoma, LockBit 3.0
First listed
Nov 1, 2023
Claims recorded
2

2 Leak-Site Claims.

SarcomaConfirmed claim
Posted on the leak site
Oct 15, 2025
Collected by Brandefense
Oct 15, 2025
Data claimed
Not stated
Leak-site post text, written by the group
Unimed do Brasil Unimed Pelotas is a comprehensive health service center located in Pelotas, Brazil, providing a wide range of medical services and assistance. They offer client-friendly features such as an application for convenience, a doctor search guide, and online medical consultations for both adults and children. The organization also emphasizes community involvement through various programs, including health and sustainability initiatives. Their target audience includes individuals seeking health insurance and medical services tailored to their needs.Geo: Brazil - Leak size: 2,8 TB…
LockBit 3.0Confirmed claim
Posted on the leak site
Nov 1, 2023
Collected by Brandefense
Jul 11, 2025
Data claimed
Not stated

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
victim
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SarcomaGBUnited KingdomNon-profit and Civil SocietyNot stated
GYF
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SarcomaARArgentinaTechnologyNot stated
Propane Levac Inc.
propanelevac.ca
SarcomaCACanadaEnergy and UtilitiesNot stated
MecMatica
mecmatica.it
SarcomaITItalyTechnologyNot stated
Söllner
bedachungen-soellner.de
SarcomaDEGermanyUnknownNot stated
B&J Rocket Sales
bj-rocket.com
SarcomaCHSwitzerlandUnknownNot stated
Other confirmed victims in the same industry
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Mastelli S.r.l.
mastelli.com
QilinITItalyHealthcareNot stated
First Dental Health
firstdentalhealth.com
The GentlemenUSUnited StatesHealthcareNot stated
Gio Dental Med Spa
giodentalspa.com
The GentlemenMXMexicoHealthcareNot stated
EnVision Eye Care
envision-eyecare.com
N0nUSUnited StatesHealthcareNot stated
Hospital Sírio-Libanês
hsl.org.br
The-seven-deadly-sinsBRBrazilHealthcare3.5 MB
iHeartJane
iheartjane.com
The-seven-deadly-sinsUSUnited StatesHealthcare67 KB

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.