Was Zdrowit hit by ransomware?

Zdrowit was listed by the thegentlemen ransomware operation (Poland), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the thegentlemen ransomware group?

thegentlemen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Zdrowit breach?

thegentlemen published data attributed to Zdrowit. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Zdrowit S.A.

listed as Zdrowit · Claimed by Thegentlemen · listed 4 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedSep 5, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Poland
Sector: Healthcare
Listed on leak site: Sep 5, 2026

About the victim

AI dossier — public-source company profile

Zdrowit S.A. is a Polish family-owned pharmacy chain with 100% Polish capital, operating since 2004 and headquartered in Bytom, Silesia. The company operates over 1,000 employees across 40+ cities in southern and central Poland, structured as a holding with individual pharmacies operating as separate entities. It reported 83.5% net sales revenue growth in 2024.

Industry: Pharmacy & Retail Healthcare
Address: Bytom, Silesia, Poland
Employees: 1000+
Founded: 2004

Attack summary

Severity: medium — Healthcare sector victim with significant employee and operational scale; however, no specific data exfiltration is confirmed, no proof files are advertised, and no operational disruption is stated. Classification is based on sector sensitivity and company size alone.

The ransomware group claims to have compromised Zdrowit S.A. The leak post does not specify whether data was exfiltrated, encrypted, or both, nor does it detail what data categories are at stake beyond the company's general operations.

medium

What the group claims

karierazdrowit.pl zoominfo.com/c/zdrowit/535531700 Zdrowit S.A. is a family-owned Polish pharmacy chain with 100% Polish capital, operating since 2004 and headquartered in Bytom, Silesia, with over 1,000 employees across 40+ cities in southern and central Poland, aiming to become the largest pharmacy network in the region. The business is growing extremely fast, with 2024 net sales revenue up +83.5%, though its net profit margin fell 10.3% due to the costs of rapid expansion. The company is structured as a holding: individual pharmacies operate as separate Sp. z o.o. entities under Zdrowit S.A., which is registered under KRS 0000704305 with a share capital of 1,197,432.00 PLN. Its core workforce consists of pharmacists and pharmacy technicians hired across dozens of locations, supported by a small modern HQ team in Bytom covering data, IT, controlling and marketing. A key strength is its internship pipeline, offering a 2-year program for technicians and a 6-month program for pharmacis

Sources

Victim sitekarierazdrowit.pl

Source

Indexed 4 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 817 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post September 5, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

September 5, 2026Zdrowit listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 817 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,608 disclosures indexed across all operators we track. Geographically, Zdrowit is reported in Poland, a country with 21 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Zdrowit appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CERT Polska (Poland), as required for your jurisdiction.
Monitor for the data appearing on thegentlemen's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.