Sasin Colleges & Universities Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Sasin Colleges & Universities appeared on a data-leak site operated by thegentlemen ransomware group on February 21, 2026, after internal files were exfiltrated in a ransomware attack. An undisclosed number of individuals may have been affected; anyone connected to the institution should verify whether their data is involved and take appropriate protective steps.
Inside the incident
The incident came to light through a listing dated February 21, 2026. Available information states that internal files were exfiltrated during a ransomware attack. No figures have been released for the number of records, files or individuals concerned, and the method of initial access remains undisclosed.
The group behind it: thegentlemen
The listing is presented by the ransomware group thegentlemen on its leak site. The group claims involvement in the activity at Sasin Colleges & Universities. Ransomware operators of this type commonly seek to obtain and threaten the release of data to pressure victims, though any specific demands or communications tied to this case have not been detailed publicly.
About Sasin Colleges & Universities
Sasin Colleges & Universities encompasses Sasin School of Management, established in 1982 as the first internationally accredited business school in Thailand. The school delivers MBA, Executive MBA, DBA and custom executive education programmes aimed at experienced professionals and individuals preparing for leadership roles. Institutions of this kind maintain extensive administrative and academic records to support admissions, teaching, alumni relations and institutional operations.
What was likely exposed
The only data category named is internal files exfiltrated in a ransomware attack. The exact nature of those files has not been confirmed. Educational organisations routinely process student applications, academic transcripts, contact information, employment-related details and financial records for tuition or scholarships; whether any of these categories were present in the exfiltrated material is unconfirmed.
What's at stake
Individuals whose information appears in internal files face the possibility that their details could be used in targeted phishing or other follow-on activity. The organisation may experience operational disruption while addressing the incident and may need to review access controls and data retention practices. Both outcomes unfold over months rather than days, as affected parties wait for clearer information on what was taken.
Were you affected?
People who have studied, taught or worked with Sasin Colleges & Universities can monitor their email and other accounts for unexpected messages. Running a free exposure scan of an email address against known breach data provides one way to check for prior appearances of that address in public listings. Direct contact with the institution may yield further updates if additional details are released.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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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.
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