Was Ministarstvo zdravstva Republike Hrvatske hit by ransomware?

Ministarstvo zdravstva Republike Hrvatske was listed by the thegentlemen ransomware operation (Croatia), 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 Ministarstvo zdravstva Republike Hrvatske breach?

thegentlemen published data attributed to Ministarstvo zdravstva Republike Hrvatske. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Ministarstvo zdravstva Republike Hrvatske

Claimed by Thegentlemen · listed 7 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJun 15, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Croatia
Sector: Public Sector
Listed on leak site: Jun 15, 2026

About the victim

AI dossier — public-source company profile

The Ministry of Health of the Republic of Croatia is the central government authority responsible for shaping national health policies, regulating medical standards, and managing the public healthcare system. It provides citizens with public health guidelines, legislative updates, and access to e-Health digital services.

Industry: Public Sector - Healthcare & Government
Address: Ksaver 200A, 10000 Zagreb, Croatia

Attack summary

Severity: high — Critical government healthcare infrastructure compromised; potential exposure of patient medical records and national health system data at scale. Disclosure status indicates data_published. Government sector and healthcare regulator status elevates severity despite lack of explicit proof inventory in the post.

The thegentlemen group claims to have compromised the Ministry of Health of the Republic of Croatia. The leak post references the organization but provides no explicit details on the scope of exfiltration, encryption, or specific data stolen.

high

Data the group says was taken

AI dossier — extracted from the leak post

e-Health system data
patient records
healthcare infrastructure documentation
government correspondence

What the group claims

***.gov.hr zoominfo.com/c/ministarstvo-zdravstva-republike-hrvatske/1339932847 The Ministry of Health of the Republic of Croatia is the central government authority responsible for shaping national health policies, regulating medical standards, and managing the public healthcare system. Through its official portal, it provides citizens with crucial public health guidelines, legislative updates, and secure access to modern digital e-Health services. Their primary mission is to protect population well-being, ensure equitable access to high-quality medical care, and continuously modernize the national health infrastructure

Sources

Victim sitezdravlje.gov.hr

Source

Indexed 7 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 504 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post June 15, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

June 15, 2026Ministarstvo zdravstva Republike Hrvatske listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 504 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 Public Sector sector, which has 466 disclosures indexed across all operators we track. Geographically, Ministarstvo zdravstva Republike Hrvatske is reported in Croatia, a country with 3 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Ministarstvo zdravstva Republike Hrvatske 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.
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.