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Cyber Threat
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Ransomware victim Education

GUSTO College GLMS

Listed by Dysphor1a on · organisation based in Thailand

gusto-education.com

Disclosed
Aug 20, 2026
Leak-site listing date
Threat group
Dysphor1a
11 victims listed
Country
Thailand
#17 most targeted
Sector
Education

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Dysphor1a. Figures and technique mappings are quoted from the source data, not inferred.

About the Dysphor1a group

Suspicious group. We did not manage to confirm any victims. Dysphor1a has listed 11 victims since August 2026.

Incident analysis

GUSTO College GLMS was listed by Dysphor1a ransomware, a group with 11 victims recorded in this database. The listing appeared on the group's leak site on August 20, 2026.

GUSTO College GLMS is based in Thailand and operates in the Education sector. Thailand ranks #17 worldwide for ransomware disclosures, with 190 victims in this database.

Sector context. Educational institutions often have under-resourced IT security teams and hold large amounts of student and faculty personal data, making them attractive targets for ransomware groups.

Dysphor1a typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was GUSTO College GLMS attacked by ransomware?

Yes. GUSTO College GLMS was listed as a victim of the Dysphor1a ransomware group on August 20, 2026. The organisation is based in Thailand and operates in the Education sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked GUSTO College GLMS?

GUSTO College GLMS was attacked by Dysphor1a ransomware. Dysphor1a is one of the most active ransomware groups, having claimed 11 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the GUSTO College GLMS ransomware attack occur?

The ransomware attack on GUSTO College GLMS was disclosed on August 20, 2026. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the GUSTO College GLMS ransomware attack?

The specific data stolen from GUSTO College GLMS has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Education organisation, GUSTO College GLMS likely held student and faculty personal data and academic records.

How can organisations protect against Dysphor1a attacks?

To defend against Dysphor1a and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.