Hospital del Sur Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

Inside the incident

The only confirmed information is the group’s public listing of the hospital and its assertion that files were taken. No date of the initial compromise, no description of the encryption or exfiltration method, and no statement on whether any data was published have been released by either the hospital or the group. The scale of the operation, measured either in file volume or in records involved, remains unknown.

The group behind it: thegentlemen

Thegentlemen is a ransomware operator that maintains a leak site where it lists organizations it claims to have targeted. Such groups commonly use double-extortion tactics: they encrypt systems to disrupt operations and separately threaten to release stolen data if a ransom is not paid. Public reporting on the group’s prior activity shows repeated targeting of mid-sized organizations across multiple countries, though each listing on its site constitutes an unverified claim until independently confirmed.

Hospital del Sur and its sector

E.S.E Hospital del Sur provides general consultations, hospitalization, imaging, laboratory services, and emergency care to residents of Itagüí and surrounding areas. Like other Colombian public hospitals, it processes patient records, appointment data, laboratory results, and administrative information required for billing and coordination with the national health system. Disruptions at facilities of this type can affect both routine care and urgent services.

What was likely exposed

The listing refers only to “internal files.” The precise categories of data contained in those files have not been published. Healthcare organizations routinely hold patient identifiers, clinical notes, diagnostic results, and staff or vendor records; however, whether any of these specific elements were among the exfiltrated material is unconfirmed.

Why it matters

Even without a confirmed count of records, the presence of internal files from a hospital raises the possibility that personal health information could be used for identity-related fraud or targeted scams. For the institution, the incident adds operational strain at a time when restoring systems and reviewing access controls requires resources that would otherwise support patient services. Colombian data-protection rules require notification to affected individuals and to the Superintendencia de Industria y Comercio when personal data is compromised, though no such notification timeline has been reported.

If your data was in this claimed breach

Individuals who have received care at Hospital del Sur should monitor their financial accounts and official correspondence for unusual activity. Enabling multi-factor authentication on any associated online portals and requesting a credit report from local bureaus are standard first steps. A free exposure scan using a reputable breach-checking service can indicate whether an email address linked to the hospital has appeared in previously published data sets; any confirmed exposure should prompt password changes and direct contact with the hospital’s data-protection office for further guidance.

AICompiled with AI assistance from public sources and published under our editorial standards.