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Garn Mason Orthodontics

listed as Garn Mason Orthodontics was hacked. All insurance and personal data of customers was stole · Claimed by Knight · listed 3 years ago

33m
Age
since listed · data leaked

Status timeline

  1. ListedSep 29, 2023
  2. Data leakeddate unknown

At a glance

Group
Knight
Status
Data leaked
Country
United States
Sector
Finance
Listed on leak site
Sep 29, 2023

About the victim

AI dossier — public-source company profile

Garn Mason Orthodontics is a US-based orthodontic dental practice. The practice provides orthodontic care to patients and handles patient insurance and personal health information. No further details on scale or location are available from the leak post or public site.

Industry
Orthodontic Dental Practice

Attack summary

Severity: critical — The group claims confirmed exfiltration of regulated patient data including personal and insurance information from a healthcare provider, constituting HIPAA-covered PHI/PII at patient scale, and the disclosure status is data_published.

The Knight ransomware group claims to have exfiltrated all insurance and personal data belonging to customers of Garn Mason Orthodontics; the post indicates data has been published.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Patient insurance information
  • Personal identifying information (PII)

What the group claims

Garn Mason Orthodontics was hacked. All insurance and personal data of customers was stolen

Sources

Source

Indexed 3 years 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 Knight

Knight is a relatively new ransomware group that emerged in September 2023, operating with primarily financial motivations and demonstrating a focus on targeting critical infrastructure and high-value sectors. The group's origin and specific affiliations remain largely undocumented in public threat intelligence reports, though their operational patterns suggest they operate as an independent entity rather than a established ransomware-as-a-service model. With 48 known victims since their emergence, Knight has shown a preference for targeting organizations across the United States, Brazil, Italy, Spain, and Germany, with particular focus on healthcare, manufacturing, media, and government sectors. Their attack methodology and specific technical capabilities have not been extensively documented by major security firms, though their targeting of healthcare and government entities suggests they employ effective initial access techniques and likely utilize double extortion tactics common among contemporary ransomware groups. While specific notable campaigns have not been widely publicized by CISA, FBI, or major security researchers, the group's consistent activity across multiple countries and high-value sectors indicates sustained operational capability. Knight appears to remain active as of current reporting, though detailed technical analysis and specific law enforcement actions against the group have not been publicly documented by authoritative sources. The group has been linked to 48 public disclosures across our corpus. First observed on a leak site on September 6, 2023; most recent post February 12, 2024. The operation is currently inactive.

Timeline of this disclosure

  • September 29, 2023Garn Mason Orthodontics was hacked. All insurance and personal data of customers was stole listed by Knighton the group's public leak site

Other recent disclosures by Knight

Knight has been linked to 48 public victims on Darkfield. A sample of the most recent:

See the full Knight dossier →

Sector and geography

This disclosure adds to ransomware activity in the Finance sector, which has 108 disclosures indexed across all operators we track. Geographically, Garn Mason Orthodontics was hacked. All insurance and personal data of customers was stole is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Knight means Garn Mason Orthodontics was hacked. All insurance and personal data of customers was stole 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 Knight'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.