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Epsilon is a French-speaking cybercriminal group associated with data leaks affecting French organizations, including the cloud-gaming, consumer-electronics retail, and sporting-goods retail sectors. The group attempted to distribute an unsophisticated infostealer and was linked to online actors known as ChatNoir, Casquette, and Benef. Former Epsilon-associated participants have subsequently been implicated or suspected in cybercrime investigations involving French public-sector and commercial victims. Epsilon-linked actors were also connected to a French-speaking scam network that marketed fabricated personal-data databases impersonating French government and health-insurance entities. The group’s known activity centers on data theft, leakage, fraud, and the pursuit of notoriety rather than ransomware operations.
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Groupe cybercriminel associé à ChatNoir et Casquette, connu pour avoir tenté de promouvoir un infostealer propriétaire peu sophistiqué et pour des compromissions suivies de fuites de données visant des entreprises françaises.
Linked to a French-speaking scammer collective selling fabricated databases impersonating trusted French institutions and conducting fraud activity.
The content briefly references Epsilon as a group previously associated with the cybercriminal 'Casquette', but provides no operational detail about the group’s activities in this article.
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