Santa Casa de Assis Listed by thegentlemen Ransomware Group

On December 24, 2025, Brazilian healthcare provider Santa Casa de Assis appeared on the leak site of the ransomware group known as thegentlemen. The organization, a private hospital complex in Assis, São Paulo, is claimed to have had internal files exfiltrated during a ransomware attack. While the exact number of people affected remains unknown, anyone who has received treatment there, worked at the facility, or had family members admitted could have personal information now at risk.

What Public Reporting Shows

Public reporting indicates that Santa Casa de Assis, founded in 1919 and holder of the CEBAS certificate for social assistance in health, operates emergency care, maternity, surgical and intensive care units, orthopedics, hemodynamics, laboratory diagnostics, and specialized clinics. The institution’s website and business records confirm it as a longstanding regional healthcare provider. Available reporting describes the data exposed as internal files exfiltrated in the ransomware incident. The group listed the organization on its leak site on Christmas Eve 2025, a move that typically signals either failed ransom negotiations or the start of public extortion.

Why This Matters for You and Your Family

When a hospital’s internal files are stolen, the information often includes patient names, addresses, dates of birth, national ID numbers, medical records, insurance details, and contact information for family members. Medical data is especially sensitive because it can be used for identity theft, insurance fraud, or targeted scams that reference your private health history. If you or your children have been treated at Santa Casa de Assis, those records could now circulate among criminals. Even if you live outside Brazil, relatives or travel history may have placed your information inside the compromised systems.

The Doxxing and Identity-Chain Implications

Stolen hospital files rarely stay isolated. Criminals combine medical data with other leaks to build detailed profiles that link your email, phone number, home address, family relationships, and online accounts. This creates an identity chain that makes doxxing easier and faster. Credential leaks from healthcare environments frequently cascade into gaming platforms, where children’s accounts become entry points for further harassment or extortion. A single exposed email from a hospital visit can unlock reused passwords across personal and family services, turning one breach into a chain of takeovers.

Thegentlemen’s Publicly Known Track Record

Public reporting attributes thegentlemen as a ransomware group that emerged in recent years and has targeted organizations across multiple sectors. Notable prior victims include other healthcare providers and private institutions whose data appeared on similar leak sites. Their typical playbook involves initial access through common vulnerabilities or phishing, followed by exfiltration of sensitive files, encryption of systems, and extortion demands. When payment is not received, the group publishes samples or full datasets on their dark-web leak site to pressure victims. Exact details of their operations remain limited, but available reporting consistently describes this pattern of data theft and public shaming.

What to do

• Run a DoxxScan to map every link between your emails, phone numbers, handles, and real identity so you can see exactly what chains back to the Santa Casa de Assis breach.
• Rotate any password you ever used at Santa Casa de Assis or associated clinic portals anywhere it has been reused, and switch to 2FA through an authenticator app rather than SMS.
• Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next leak exposing you or your family is caught in hours instead of months.
• Cover the entire household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often become targets when credential leaks create doxxing chains.
• Let remediation specialists handle takedown requests for any exposed personal information found on data broker sites and underground forums.

The incident underscores that healthcare data breaches continue to expose ordinary families to long-term identity risks that do not disappear when the news cycle moves on. Starting with a clear picture of your exposure and putting continuous safeguards in place can limit the damage. DoxxScan by GalaxyWarden delivers that protection through continuous monitoring across 13.1B+ breach records and 100+ platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts. Source: thegentlemen leak site (via ransomware.live)