Anfibius.net listed on Tengu ransomware leak site

• Ransomware group: Tengu
• Country: Spain
• Sector: Technology
• Announcement date: January 17, 2026

Tengu ransomware group claims data breach at anfibius.net

The threat actor known as Tengu has published data allegedly belonging to anfibius.net on their leak site. This announcement, made on January 17, 2026, marks a new potential incident involving the technology sector. The listing serves as a claim of a successful breach by the group against the organization.

Ransomware groups often utilize leak sites to pressure victims into paying ransoms through a tactic known as double extortion. In such scenarios, attackers not only encrypt an organization's data but also threaten to release sensitive information publicly if their demands are not met. This method increases the pressure on companies by threatening their reputation and operational integrity.

Details of the alleged incident

The Tengu group listed anfibius.net on their leak site, claiming a data breach occurred on January 17, 2026. The post includes sample files related to the organization's business and project management processes. While the group has made this public claim, public information regarding this specific group remains limited, making it difficult to ascertain their specific methods or motivations.

The content provided by the attackers consists of screenshots that display blurred images. These images allegedly represent the organization's file directories and project management documents. However, there is no detailed information regarding the full scope or nature of the leaked data, and the group has not provided information regarding the total volume of data or the specific number of files involved.

Data types involved

The listing names no specific data types in a structured format.

About anfibius.net

Anfibius is an Ecuadorian company that provides software solutions and technology services for integrated business and project management. Given its role in providing software and technology services, the organization operates within a critical segment of the digital economy.

Security implications and industry risks

This alleged leak may pose a risk of exposing the organization's operational data and customer information. Because the organization is based in Spain, a potential data breach could trigger legal processes and administrative sanctions under the General Data Protection Regulation (GDPR). Organizations operating within the European regulatory framework must be prepared for the legal complexities that follow such incidents.

Furthermore, as an entity operating in the technology sector, this incident may also present risks to supply chain security. When a technology provider is compromised, there is a possibility that the exposed data could be utilized for secondary attacks or phishing attempts targeting the organization's clients. This creates a ripple effect where a single breach can impact a wider network of business partners and end-users.

For organizations in the technology sector, maintaining robust security postures is essential to mitigate these risks. Common defensive steps include implementing multi-factor authentication, maintaining regular offline backups, and conducting thorough third-party risk assessments. Because the limited information regarding the group's methods makes it difficult to fully assess the scale of the threat, organizations should remain vigilant against potential follow-on attacks such as targeted phishing or social engineering attempts that leverage stolen operational data.