Tengu ransomware group lists https://www.revnomix.com on its leak site

• Ransomware group: Tengu
• Country: India
• Sector: Technology
• Announcement date: December 8, 2025

Tengu claims data breach at Revnomix

The threat actor known as Tengu has listed revnomix.com on its leak site, claiming that the organization has been compromised. The listing appeared on the group's platform on December 8, 2025. According to the announcement, the group alleges that it has successfully gained unauthorized access to the digital assets belonging to the organization.

Ransomware groups often utilize leak sites as a tool for double extortion. In these scenarios, attackers not only encrypt an organization's data to disrupt operations but also threaten to publish sensitive information on public forums to pressure the victim into paying a ransom. By hosting these listings, threat actors attempt to maximize the reputational damage and psychological pressure exerted on the target entity.

Details regarding the alleged leak

Despite the announcement made by the Tengu group, there are significant gaps in the information provided. No specific details regarding the nature of the alleged leaked data have been provided by the attackers. Furthermore, the screenshot provided by the group appears to be erroneous, as it contains an image belonging to a different entity entirely.

The listing names no specific data types that have been compromised.

Organizational profile

Revnomix is a technology company specializing in the hospitality sector. The organization provides data analytics and revenue management services specifically designed for hotels. As a hospitality technology specialist, Revnomix is dedicated to improving hotel performance through the implementation of various data-driven solutions.

Potential implications and industry risks

Public information regarding the Tengu group remains limited, making it difficult to assess their specific tactics or long-term objectives. However, the nature of the target presents significant risks. Given that Revnomix provides data analytics services, a potential breach could expose sensitive information belonging to its various clients within the hospitality sector.

For organizations operating in India, such an incident may trigger legal processes under the Digital Personal Data Protection Act (DPDPA). Beyond legal compliance, the alleged leak could lead to significant reputational damage and a loss of trust among the organization's clients. There is also the possibility that any leaked data could be utilized by malicious actors for identity theft or targeted phishing attacks.

To defend against such threats, organizations in the technology and hospitality sectors typically implement defensive measures such as multi-factor authentication, regular security audits, and robust encryption for data at rest and in transit. Maintaining a strong incident response plan is also a critical component of a modern cybersecurity posture to mitigate the impact of unauthorized access.