Meducar Data Breach

Meducar, a telemedicine and patient management platform based in Brazil, was listed as a victim on the Kazu ransomware group’s leak site on August 23, 2026. The platform provides cloud-based healthcare management tools including patient records, scheduling, and clinical workflow services within the Brazilian market. Meducar’s listing reflects Kazu’s concentrated push against Latin American digital health infrastructure, with Brazil emerging as a key focus country in the group’s current campaign. Over the past 60 days, Kazu has claimed approximately 9 victims, with Healthcare as its dominant targeted industry and Brazil and Mexico as two of its three leading victim countries. Brazil Mobilemed, another Brazilian healthcare platform, appears alongside Meducar in Kazu’s current victim dataset — indicating a concerted focus on Brazilian telemedicine and health IT providers. ConsultorioMovil (Mexico), Centro Médico Especializado OSI (Mexico), and Dr. Akbar Niazi Teaching Hospital (Pakistan) further illustrate the exclusively healthcare character of this Kazu campaign wave. Meducar’s patient management scope — patient records, appointment data, clinical notes — represents exactly the category of sensitive health data that amplifies the impact of a ransomware incident.

Initial-access correlation against SOCRadar’s stealer-log telemetry returned no records for meducar.com in the queried slice. A null result is not the same as a clean bill of health — the sample is paginated, alternate domains and personal email aliases fall outside this query, and credentials may have been used and rotated before indexing. Infostealer-sourced credentials remain one of the most reliable initial-access vectors for ransomware groups operating at scale. While no stealer-log evidence was surfaced for this domain in this query, the absence of a finding in a paginated sample is not equivalent to confirmed clean posture. Kazu’s operational profile is consistent with phishing, exposed VPN appliances, and recycled credentials as entry paths; affected organizations are advised to audit authentication logs, enforce MFA on internet-exposed services, and treat the listing itself as an indicator that the threat actor has gathered sufficient operational intelligence about the target.

This report is intended for threat intelligence and security awareness purposes. SOCRadar does not host, redistribute or buy stolen data. All breach information reported here is collected from publicly accessible threat actor and ransomware portals. This content is intended to equip CTI teams with context around recent attacks. While we strive for accuracy, listings on ransomware leak and extortion sites cannot always be independently verified and may not reflect confirmed breaches. If you believe any data in this report is incorrect, please contact us.