Disclosure context

About exitium

Exitium is an emerging ransomware group that was first observed in March 2026, operating with apparent financial motivations based on their limited but documented attack patterns. Given the recent emergence and limited public documentation, specific details about the group's country of origin, organizational structure, or potential affiliations remain unclear to security researchers and law enforcement agencies. The group's attack methodology and technical capabilities have not been extensively documented due to their recent appearance and small victim count, though they appear to target specific sectors rather than conducting widespread campaigns. Exitium has been observed targeting organizations in the United States and Brazil, with a particular focus on the agriculture and food production sector as well as public sector entities, suggesting possible strategic targeting of critical infrastructure. The group remains active as of their recent emergence, though their limited victim count of two documented cases indicates they are either highly selective in their targeting, newly operational, or operating at a smaller scale compared to established ransomware groups. The group has been linked to 8 public disclosures across our corpus. First observed on a leak site on March 17, 2026; most recent post May 16, 2026. The operation is currently active.

Timeline of this disclosure

May 16, 2026Gastroenterology & Hepatology of CNY[FULL_LEAK] listed by exitiumon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, Gastroenterology & Hepatology of CNY[FULL_LEAK] is reported in US, a country with 2,713 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

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Gastroenterology & Hepatology of CNY[FULL_LEAK]

Claimed by exitium · listed 4 days ago

Age

since listed · data leaked

Status timeline

Listed
May 16, 2026
Data leaked

At a glance

Group: exitium
Status: Data leaked
Country: US
Sector: Healthcare
Listed on leak site: May 16, 2026

About the victim

AI dossier — public-source company profile

Gastroenterology & Hepatology of CNY, PC (gandhofcny.com) is a gastroenterology and hepatology medical practice located in Syracuse, New York. It operates alongside the Digestive Disease Center of CNY, LLC (ddcofcny.com), an AAAHC-accredited endoscopy center. The practice serves a large regional patient population in Central New York.

Industry: Gastroenterology & Hepatology Medical Practice
Address: Syracuse, New York, USA

Attack summary

Severity: critical — Confirmed exfiltration and full public leak of highly regulated medical PII at large scale: 167,303 patients including SSNs, full contact details, sensitive diagnostic categories (mental health, STIs, substance abuse, cancer), pathology narratives, and medication records — all categories protected under HIPAA. The data has already been published, maximising harm.

The group claims to have exfiltrated the full internal database of the practice, including records for 167,303 patients with highly sensitive medical, demographic, and financial identifiers; the data has been publicly leaked in full after a ransom demand was not met.

critical

Data the group says was taken

AI dossier — extracted from the leak post

167,303 patient records
124,761 Social Security Numbers (SSN)
166,402 patient addresses
164,296 patient phone numbers
85,318 patient email addresses
1,093,863 ICD-10 diagnoses
1,547,142 medication records
186,246 pathology specimens with narrative reports
Mental health diagnoses (43,902 patients)
Substance/alcohol use diagnoses (5,111 patients)
STI diagnoses (2,779 patients)
Cancer diagnoses (2,708 patients)
Hepatitis C diagnoses (1,906 patients)
Records of notable individuals (politicians, public figures, businesspeople)

What the group claims

We decided to leak all patient records. Enjoy)

The leak post

captured from the group's site

Website: fannincad.org Zoominfo: https://www.zoominfo.com/c/fannin-central-appraisal-district/1117264519 Exfiltrated: 400 GB of data
Website: marborges.com Zoominfo: https://www.zoominfo.com/c/marborges-agroindustria/547271801 Company in Brasil with a bad security.
Website: mhe.com.tw Zoominfo: https://www.zoominfo.com/c/ming-hwei-energy-co-ltd/446006038 A small private B2B firm (11–50 staff, <$5M revenue), part of a Taiwanese fastener conglomerate. Manufacturer of solar cells in a niche where Taiwanese firms are consistently undercut by Chinese pricing. Their infra encrypted.
Website: gandhofcny.com Zoominfo: https://www.zoominfo.com/c/gastroenterology--hepatology-of-cny-pc/346091487 Data sample, whole internal data will be sold if they wouldn't pay ransom. Also Digestive Disease Center of CNY, LLC (ddcofcny.com) GI practice + AAAHC-accredited endoscopy center. Syracuse, New York, USA. Full database for sale — 167,303 patients, 124,761 SSN, 49,798 with sensitive diagnoses: - 167,303 patients — 124,761 with SSN, 166,402 (99%) with address, 164,296 (98%) with phone, 85,318 (51%) with email - 1,093,863 diagnoses (ICD-10), 1,547,142 medications, 186,246 pathology specimens with narrat…

Sources

Leak posthttp://m3ksukzn2glzfdvlusohril7n3iyk4z4fudf6mm22lwhpbpt5aiee5qd.onion#Gastroenterology%20%26%20Hepatology%20of%20CNY%5BFULL_LEAK%5D

Source

Indexed 4 days 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.