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Zenidoc

Claimed by Panzer · listed 4 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedOct 13, 2026
  2. Data leakeddate unknown

At a glance

Group
Panzer
Status
Data leaked
Sector
Professional Services
Listed on leak site
Oct 13, 2026

About the victim

AI dossier — public-source company profile

Zenidoc is a French healthcare software company that provides AI-powered documentation automation solutions for hospitals and medical professionals, including medical dictation transcription, patient record management, and workflow streamlining.

Industry
Healthcare Software & Medical Documentation

Attack summary

Severity: critical — Confirmed exfiltration of regulated healthcare data at scale (605k patient records including PII and SSN) violates HIPAA and GDPR; additionally exposes internal systems and source code, multiplying operational and security risks.

Panzer claims to have exfiltrated approximately 605,000 patient records containing personally identifiable information (names, phone numbers, SSNs) along with Zenidoc's internal infrastructure data, source code, and support communications from their cloud development, production, and support environments.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • 605k patient records
  • Patient names
  • Patient phone numbers
  • Social Security Numbers (SSN)
  • Cloud development environment data
  • Production environment data
  • Source code
  • Support chat logs

What the group claims

a French healthcare software company that helps hospitals and medical professionals automate documentation, transcribe medical dictation, manage patient records, and streamline workflows using AI and voice-recognition technology. Data Content : - 605k Patient Data, Names, Phone, SSN and more. - Zenidoc Cloud Dev, Data, Prod, Support Chats, Source Codes and more.

Sources

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 Panzer

Panzer is a ransomware group first observed in August 2026 with an apparent primary motivation of financial gain, though limited public documentation exists given the group's recent emergence and low victim count. Based on available data, the group has claimed two known victims to date, with targeting concentrated in Switzerland and Indonesia, suggesting either opportunistic selection or early-stage operational development. The group has demonstrated interest in the Retail and E-Commerce and Education sectors, which are commonly targeted for their relatively lower cybersecurity maturity and potential for operational disruption that increases victim willingness to pay. No detailed technical analysis of Panzer's tooling, initial access vectors, encryption methodology, or extortion tactics has been publicly documented by CISA, the FBI, Mandiant, or other reputable threat intelligence sources at this time, which is consistent with the group's nascent status and minimal confirmed activity. Given the small victim count and very recent first-observed date, Panzer may represent a new or emerging threat actor, a rebranded entity, or a low-volume affiliate operating within a larger Ransomware-as-a-Service ecosystem, though none of these assessments can be confirmed without additional public reporting. Analysts should continue to monitor for indicators of expanded targeting, updated tooling disclosures, or law enforcement advisories that may shed further light on this group's capabilities and affiliations. The group has been linked to 43 public disclosures across our corpus. First observed on a leak site on August 5, 2026; most recent post October 13, 2026. The operation is currently active.

Timeline of this disclosure

  • October 13, 2026Zenidoc listed by Panzer on the group's public leak site

Other recent disclosures by Panzer

Panzer has been linked to 43 public victims on Darkfield. A sample of the most recent:

See the full Panzer dossier →

Sector and geography

This disclosure adds to ransomware activity in the Professional Services sector, which has 17 disclosures indexed across all operators we track.

If your organisation is affected

A listing by Panzer means Zenidoc 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 Panzer'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.