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OGI Groupe

Ransomware attack by Worldleaks ยท Disclosed December 19, 2025 ยท ๐Ÿ‡ซ๐Ÿ‡ท France

ogi-groupe.fr

Date Disclosed
Dec 19, 2025
2025
Threat Group
Worldleaks
177 total victims
Country
๐Ÿ‡ซ๐Ÿ‡ท France
Industry
Business Services

Incident Analysis

OGI Groupe was targeted by Worldleaks ransomware, one of the most active ransomware groups in our database with 177 confirmed victims globally. The attack was disclosed on December 19, 2025, when OGI Groupe appeared on the group's dark web leak site.

OGI Groupe is based in France , operating in the Business Services sector. France ranks #6 globally for ransomware attacks, with 492 victims in our database.

Sector context: Business services firms often have access to multiple client environments, making them high-value pivot points for ransomware operators seeking to maximise impact across multiple victim organisations.

Worldleaks 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 โ€” 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: Aug 5, 2026 14:00 UTC.

Frequently Asked Questions

Was OGI Groupe attacked by ransomware?

Yes. OGI Groupe was listed as a victim of the Worldleaks ransomware group on December 19, 2025. The organisation is based in France and operates in the Business Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked OGI Groupe?

OGI Groupe was attacked by Worldleaks ransomware. Worldleaks is one of the most active ransomware groups, having claimed 177 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the OGI Groupe ransomware attack occur?

The ransomware attack on OGI Groupe was disclosed on December 19, 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 OGI Groupe ransomware attack?

The specific data stolen from OGI Groupe 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 Business Services organisation, OGI Groupe likely held sensitive business data, client information, and operational records.

How can organisations protect against Worldleaks attacks?

To defend against Worldleaks 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.