Zdrowit listed on thegentlemen leak site

• Ransomware group: thegentlemen
• Country: Poland
• Sector: Healthcare
• Announcement date: September 5, 2026

Thegentlemen claims a data breach at Zdrowit

The Polish pharmacy chain Zdrowit has been listed on a leak site by the threat actor group known as thegentlemen. The group has claimed to have conducted a successful attack against the organization, marking a new incident in the ongoing landscape of ransomware-related extortion.

According to the announcement made on the group's platform, the threat actor group thegentlemen claimed a data breach involving Zdrowit on September 4, 2026. The group alleges that they have obtained data from the organization and have published this claim on their leak site on September 5, 2026. This type of activity is a common tactic used by modern ransomware groups, often employing a strategy known as double extortion. In such scenarios, attackers not only encrypt an organization's systems to disrupt operations but also steal sensitive information to pressure the victim into paying a ransom by threatening to leak the data publicly.

Details regarding the alleged data theft

Despite the public claim made by thegentlemen, specific details regarding the scope and nature of the alleged data remain unavailable. At this stage, the group has not provided any screenshots or evidence regarding the content of the alleged leaked data. Because no visual proof or file samples have been released, the exact volume and variety of the information involved cannot be determined.

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

About Zdrowit

Zdrowit S.A. is a Polish pharmacy chain that has been operating since 2004. The company maintains a significant presence in Poland, with operations spanning over 40 cities across the southern and central regions of the country. Headquartered in Bytom, the organization employs more than 1,000 people. As a major player in the regional market, the company aims to become the largest pharmacy network in the region.

Potential implications and industry risks

This incident suggests that the personal data of Zdrowit employees and customers may be at risk. As the organization operates in Poland, a confirmed breach could trigger legal proceedings under the General Data Protection Regulation (GDPR). The potential exposure of data may lead to targeted phishing attacks against staff or identity theft attempts.

Information regarding the thegentlemen group remains limited, making it difficult to attribute the attack or understand their specific methods. Given the organization's rapid expansion and large workforce, a potential data loss could impact operational processes significantly.

In the healthcare and pharmaceutical sector, the protection of sensitive information is critical. Organizations in this sector can take several defensive steps to mitigate the risk of such incidents. Implementing robust multi-factor authentication (MFA) across all access points can prevent unauthorized entry. Regular security awareness training for staff can help defend against the phishing attempts that often follow a data leak. Furthermore, maintaining rigorous data encryption standards and conducting frequent, isolated backups can help ensure that even if a breach occurs, the operational impact is minimized. Continuous monitoring of network traffic can also assist in the early detection of unauthorized data exfiltration attempts.