This record tracks a ransomware attack claimed by the
qilin group against
Sukhothai Thammathirat Open University. 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.
-47days
t1 · Published
t2 · Disclosed
Business Category
Education
Published
January 27, 2026
Disclosed / Notified
Dec 12, 2025
Attack Summary
Sukhothai Thammathirat Open University was named by the qilin ransomware group as a targeted organization. It operates in the Education sector. The affected entity is based in Thailand. The incident was first observed on January 27, 2026. Breach House tracks this attack from public ransomware leak-site postings for threat-intelligence purposes.
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.
Dark Web Exposure
Findings for stou.ac.th
— indexed by HaveIBeenRansom.
7,092
found in Infostealer logs
958+
found in Traditional breaches
7+
found in Ransomware leaks
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
@TXTLOG_ALIEN — @TXTLOG_LINK - 491.txt
Database World ROC · breach
••• emails
intelx.zip
Database World ROC · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
3200000 lines.txt
formaceft_db · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 17 more leak sources locked
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.