El IBR Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
El IBR was listed by thegentlemen ransomware group on February 24, 2026, after internal files were exfiltrated in a ransomware attack. Anyone connected to the organisation should check their accounts and monitor for unusual activity.
What happened
The incident centers on a claim posted by thegentlemen that it had obtained internal files from El IBR through a ransomware operation. The date of the reported listing is February 24, 2026. No additional details on the timing of the intrusion, the volume of data taken, or the method of access have been made public. The organization’s domain ibr-conicet.gov.ar appears in the available references to the listing.
Who is thegentlemen?
Thegentlemen is a ransomware group that maintains a leak site where it lists organizations it claims to have targeted. Such groups commonly encrypt systems and threaten to publish stolen data unless a ransom is paid. The listing of El IBR constitutes the group’s claim; independent confirmation of the data’s authenticity or the circumstances of its acquisition has not been provided in public records.
About El IBR
El IBR is a leading research institute with more than 240 professionals working in microbiology, biomedicine, structural biology, and agrobiotechnology. It supplies advanced laboratory infrastructure to researchers, companies, and other organizations and supports the transfer of scientific findings into commercial applications, including researcher-led startups. The institute also trains doctoral and postdoctoral researchers.
What data was at risk
The only data category named in the listing is internal files. The precise contents of those files have not been disclosed. Organizations of this type routinely hold research datasets, grant and personnel records, collaboration agreements, and technical documentation related to laboratory operations. Without a confirmed inventory, the exact nature of the material remains unverified.
The real-world impact
Exposure of internal research files could affect ongoing scientific projects, intellectual-property considerations, and the privacy of staff or research partners. For the institute, the incident adds administrative and technical workload associated with verifying the claim and assessing any operational disruption. Individuals whose information appears in the exfiltrated material face the standard risks tied to the misuse of institutional records, though the scale of any such exposure is not yet known.
If your data was in this claimed breach
Monitor official communications from El IBR and CONICET for any guidance they may issue. Change passwords for any accounts linked to the institute and enable multi-factor authentication where available. Review bank and email accounts for unusual activity. Readers can run a free exposure scan of their email address against known breach data to check whether their information has appeared in previously published datasets.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Read GalaxyWarden’s full analysis of the El IBR Listed by thegentlemen Ransomware Group →
Publicly posted by thegentlemen — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.