Garko listed on thegentlemen leak site

• Ransomware group: thegentlemen
• Country: Czechia
• Sector: Retail & E-Commerce
• Announcement date: January 21, 2026

Thegentlemen claims Garko has been targeted in a data breach

The threat actor group known as thegentlemen has listed the Czech-based organization Garko on their dedicated leak site. According to the announcement made on January 21, 2026, the group claims to have conducted an attack against the organization. The incident is allegedly associated with an event that occurred on January 20, 2026.

Information regarding the specific identity, methods, or motivations of the group known as thegentlemen remains limited within the public domain. Ransomware groups often utilize leak sites as a component of double extortion tactics. In such scenarios, attackers not only encrypt an organization's internal systems to disrupt operations but also exfiltrate sensitive data to use as leverage. By threatening to publish this data on a public platform, the threat actors aim to pressure the victim into paying a ransom to prevent the exposure of their proprietary or personal information.

Details of the alleged incident

The announcement made by thegentlemen focuses on the claim that Garko's data has been compromised. While the listing confirms that an incident is being publicized by the threat actor, specific details regarding the technical nature of the breach have not been provided. There is currently no information available regarding the specific nature of the allegedly leaked data. Furthermore, the provided documentation and screenshots associated with the listing do not contain details regarding the content of the leak.

Because the group has not disclosed the specific files or the volume of information involved, the scope and severity of the incident remain uncertain. In many ransomware campaigns, the lack of immediate detail can make it difficult for incident responders to determine the initial entry vector or the extent of the lateral movement within the network until a full forensic investigation is completed.

About Garko

Garko is a company based in the Czech Republic that operates within the retail and e-commerce sector. The organization specializes in the production of awards, trophies, medals, and certificates intended for sports and cultural events. They focus on designing specialized products that serve to honor the achievements of participants in various competitions, ranging from local to regional levels.

Potential implications and organizational risks

The claim that the organization's data has been leaked may lead to a significant loss of trust among customers and business partners. For companies operating in the European Union, such as Garko in the Czech Republic, potential data leaks may trigger formal legal processes under the General Data Protection Regulation (GDPR). These regulations impose strict requirements on how personal data is handled and how breaches must be reported to authorities and affected individuals.

Beyond legal and regulatory consequences, secondary risks include the potential use of allegedly compromised data in identity theft or targeted phishing attacks. When sensitive information is leaked, attackers often use it to craft highly convincing social engineering campaigns to target employees or clients. This can lead to further compromises within the organizational ecosystem.

To mitigate these risks, organizations in the retail and e-commerce sectors can implement various defensive measures. Common practices include maintaining robust backup solutions, implementing multi-factor authentication across all services, and conducting regular security awareness training for staff. Additionally, maintaining a comprehensive incident response plan and ensuring regular patching of software vulnerabilities are essential steps in reducing the likelihood and impact of such incidents.