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Ransomware Victim Education

College stjb

Ransomware attack by Arcusmedia Β· Disclosed July 27, 2025 Β· πŸ‡«πŸ‡· France

stjb-delasalle.fr

Date Disclosed
Jul 27, 2025
2025
Threat Group
Arcusmedia
98 total victims
Country
πŸ‡«πŸ‡· France
Industry
Education

Incident Analysis

College stjb was targeted by Arcusmedia ransomware, one of the most active ransomware groups in our database with 98 confirmed victims globally. The attack was disclosed on July 27, 2025, when College stjb appeared on the group's dark web leak site.

College stjb is based in France , operating in the Education sector. France ranks #6 globally for ransomware attacks, with 452 victims in our 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.

Arcusmedia typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats β€” paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Jun 13, 2026 06:01 UTC.

Frequently Asked Questions

Was College stjb attacked by ransomware?

Yes. College stjb was listed as a victim of the Arcusmedia ransomware group on July 27, 2025. The organisation is based in France and operates in the Education sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked College stjb?

College stjb was attacked by Arcusmedia ransomware. Arcusmedia is one of the most active ransomware groups, having claimed 98 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the College stjb ransomware attack occur?

The ransomware attack on College stjb was disclosed on July 27, 2025. 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 College stjb ransomware attack?

The specific data stolen from College stjb 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, College stjb likely held student and faculty personal data and academic records.

How can organisations protect against Arcusmedia attacks?

To defend against Arcusmedia 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.