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University Diagnostic Medical Imaging, PC (udmi.net)

Claimed by Fog · listed 1 year ago

28.1 GB
Data size
16m
Age
since listed · data leaked

Status timeline

  1. ListedMar 13, 2025
  2. Data leakeddate unknown

At a glance

Group
Fog
Status
Data leaked
Country
United States
Sector
Healthcare
Listed on leak site
Mar 13, 2025
Data size
28.1 GB

About the victim

AI dossier — public-source company profile

University Diagnostic Medical Imaging (UDMI) is a radiology center based in New York City offering comprehensive diagnostic imaging services including MRI, CT, PET/CT, ultrasound, mammography, and interventional radiology. The facility has served over 500,000 patients and performed over 7 million studies over 30+ years of operation.

Industry
Radiology & Diagnostic Medical Imaging
Founded
1994

Attack summary

Severity: critical — Healthcare provider with confirmed exfiltration of 28.1 GB of data; medical records and patient imaging data are protected health information (PHI) under HIPAA, representing regulated sensitive data at scale affecting 500,000+ patients.

The Fog ransomware group claims to have exfiltrated 28.1 GB of data from UDMI. No specific details on data categories or encryption status are provided in the leak post.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Patient medical records
  • Imaging studies
  • Personal health information
  • Patient contact information

What the group claims

28.1 GB

Sources

Source

Indexed 1 year 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 Fog

Fog is a relatively new ransomware group that emerged in July 2024, operating with apparent financial motivations and demonstrating rapid expansion in their victim targeting across multiple geographic regions and industry sectors. The group's origin and specific affiliations remain unclear due to their recent emergence, though their operational patterns suggest they likely operate independently rather than as part of an established Ransomware-as-a-Service ecosystem. Given the limited public documentation from major security agencies and researchers due to the group's recent appearance, specific details about their attack methodology, initial access vectors, and encryption techniques have not yet been comprehensively analyzed or reported by authoritative sources such as CISA, FBI, or major threat intelligence firms. The group has reportedly victimized 189 organizations primarily across the United States, Germany, France, Australia, and Brazil, with their attacks predominantly targeting the technology sector, followed by education, business services, and manufacturing industries, though no specific high-profile campaigns or record ransom demands have been publicly documented by major security researchers at this time. As of current reporting, Fog appears to remain active given their recent emergence and ongoing victim acquisition patterns observed throughout 2024. The group has been linked to 189 public disclosures across our corpus. First observed on a leak site on July 16, 2024; most recent post March 20, 2025. The operation is currently inactive.

Timeline of this disclosure

  • March 13, 2025University Diagnostic Medical Imaging, PC (udmi.net) listed by Fogon the group's public leak site
Data size
28.1 GB

Other recent disclosures by Fog

Fog has been linked to 189 public victims on Darkfield. A sample of the most recent:

See the full Fog dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,600 disclosures indexed across all operators we track. Geographically, University Diagnostic Medical Imaging, PC (udmi.net) is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Fog means University Diagnostic Medical Imaging, PC (udmi.net) 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, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on Fog'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.