RansomHub ransomware group lists www.confabca.com on its leak site

• Ransomware group: RansomHub
• Country: Costa Rica
• Sector: Professional Services
• Announcement date: February 25, 2025

RansomHub claims to have exfiltrated data from Confabca

The RansomHub ransomware group has published a listing on its leak site involving data allegedly belonging to Confabca, a professional services firm based in Costa Rica. According to the announcement made on February 25, 2025, the threat actors claim to have successfully breached the organization's networks. This type of activity is characteristic of double extortion tactics, where attackers not only encrypt an organization's systems but also steal sensitive information to use as leverage during ransom negotiations.

The threat actor alleges that they gained unauthorized access to the organization's internal networks and subsequently exfiltrated a significant volume of files. While the total size of the data breach has not been specified, the group claims to have obtained 61,769 files. The announcement includes screenshots that purportedly show internal correspondence and various operational documents belonging to the company.

Details of the allegedly stolen information

The samples provided by the RansomHub group suggest that the breach involves a wide range of sensitive documentation. The leaked files reportedly include various types of internal and external business records, ranging from human resources documentation to technical and legal files. Based on the shared samples, the following types of data are allegedly involved:

• Employee personal data
• Legal documents
• Financial invoices
• Engineering and technical drawings

The presence of such diverse file types indicates that the attackers may have had access to multiple departments within the organization, including human resources, legal, finance, and engineering.

About Confabca

Confabca is a professional services and consulting firm headquartered in Costa Rica. The company specializes in providing a variety of operational and administrative support services to a diverse range of clients across various industrial and commercial sectors.

Impact and risk assessment

The alleged leak of this data carries significant risks for both the organization and the individuals involved. The stolen information may contain highly sensitive data belonging to employees, as well as documents that could be classified as trade secrets. For the employees, the exposure of personal information increases the risk of identity theft and makes them targets for highly specific, targeted phishing attacks.

Furthermore, the exposure of legal and financial documents could have a detrimental impact on the organization's commercial relationships with third parties. Such a leak can disrupt established operational processes and damage the trust between the company and its clients or partners. Because the organization is based in Costa Rica, the incident may lead to legal sanctions regarding compliance with local data protection regulations.

It is important to note that public information regarding the RansomHub group remains limited. While the group has been active in the past, some reports suggest that their activities ceased in early 2025. Organizations in the professional services sector can mitigate such risks by implementing robust data protection frameworks, enforcing strict access controls, and maintaining comprehensive monitoring of their network environments to detect unauthorized exfiltration attempts.