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dean cosmetic dentistry

Claimed by Nightspire · listed 2 months ago

2m
Age
since listed · data leaked

Status timeline

  1. ListedJun 18, 2026
  2. Data leakeddate unknown

At a glance

Group
Nightspire
Status
Data leaked
Country
United States
Sector
Healthcare
Listed on leak site
Jun 18, 2026

About the victim

AI dossier — public-source company profile

Dean Cosmetic Dentistry is a dental practice in Knoxville, Tennessee, operated by Dr. Donnie Dean. The practice offers comprehensive dental services including cosmetic dentistry, dental implants, restorative dentistry, and advanced technologies such as CEREC same-day crowns and 3D imaging. The practice maintains over 1,600 five-star reviews and serves patients with most major insurance providers.

Industry
Dental Practice & Cosmetic Dentistry
Address
121 Capital Dr., Knoxville, TN 37922

Attack summary

Severity: low — No proof files, screenshots, or sample data published. The leak post contains only a placeholder statement with no evidence of actual data exfiltration or operational disruption. Claim is unsubstantiated.

The leak post states 'Data is not available now,' indicating the group claimed access to data but has not published or made it available for verification.

low

Data the group says was taken

AI dossier — extracted from the leak post
  • patient records
  • personal health information
  • insurance information

What the group claims

Data is not available now.

Sources

Source

Indexed 2 months 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 nightspire

Nightspire is a ransomware group that first emerged in March 2025 and appears to be primarily financially motivated, having targeted over 215 victims in a relatively short operational timeframe. The group's origin and affiliations remain unclear due to limited public documentation from major cybersecurity organizations, though their targeting patterns suggest a broad opportunistic approach rather than nation-state backing. Based on available victim data, Nightspire appears to employ common ransomware attack vectors targeting organizations across multiple sectors, with a particular focus on manufacturing, technology, healthcare, and construction industries, while demonstrating a geographic preference for victims in the United States, India, Taiwan, France, and Hong Kong. The group's rapid victim acquisition rate since their March 2025 emergence suggests an active and potentially effective operational capability, though specific technical details about their attack methodology, encryption techniques, or extortion tactics have not been publicly documented by major threat intelligence firms. Given the recent emergence of this group and limited public reporting from established cybersecurity organizations like CISA, FBI, or Mandiant, Nightspire remains an active threat with insufficient public documentation to fully assess their operational sophistication or organizational structure. The group has been linked to 335 public disclosures across our corpus. First observed on a leak site on March 12, 2025; most recent post August 22, 2026. The operation is currently active.

Also tracked as: NIGHT SPIRE.

Timeline of this disclosure

  • June 18, 2026dean cosmetic dentistry listed by nightspireon the group's public leak site

Other recent disclosures by nightspire

nightspire has been linked to 335 public victims on Darkfield. A sample of the most recent:

See the full nightspire dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,608 disclosures indexed across all operators we track. Geographically, dean cosmetic dentistry is reported in United States, a country with 3,164 ransomware disclosures in our corpus.

If your organisation is affected

A listing by nightspire means dean cosmetic dentistry 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 nightspire'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.