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Sasin Colleges & Universities

thegentlemen

This record tracks a ransomware attack claimed by the thegentlemen group against Sasin Colleges & Universities. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Window Zero

EXPOSURE GAP

Window Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.

195days open
t1 · Published t2 · Pending
Feb 17, 2026Not disclosed yet
Country
Thailand
Business Category
Education
Employees
101-1000
Discovered
2026-02-21
Published
February 17, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
u179NuTKaXxn

Attack Summary

sasin.edu zoominfo.com/c/sasin/430263326 Sasin School of Management is the first internationally accredited business school in Thailand, established in 1982. It offers a range of programs including MBA, Executive MBA, DBA, and custom executive education aimed at shaping leaders for tomorrow's world. The school targets experienced professionals and aspiring leaders seeking to enhance their management skills and knowledge. Sasin is committed to inspiring, connecting, and transforming individuals for a better, smarter, and sustainable world

Leak Screenshots

SAMPLE

Proof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for sasin.edu — indexed by HaveIBeenRansom.
28
found in Infostealer logs
972+
found in Traditional breaches
3+
found in Ransomware leaks
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
MalindoAir_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
MalindoAir_BF.7z
TheUnderground - Reborn · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Database World ROC · breach
••• emails
Database World ROC · breach
••• emails
Database World ROC · breach
••• emails
+ 17 more leak sources locked
Leak volumes are locked
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