Was GC Dental hit by ransomware?

GC Dental was listed by the Spacebears ransomware operation (South Korea), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Spacebears ransomware group?

Spacebears is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the GC Dental breach?

Spacebears published data attributed to GC Dental. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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GC Dental

Claimed by Spacebears · listed 4 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 4, 2026
Data leakeddate unknown

At a glance

Group: Spacebears
Status: Data leaked
Country: South Korea
Sector: Healthcare
Listed on leak site: Feb 4, 2026

About the victim

AI dossier — public-source company profile

GC Dental is a dental practice located in Hurstville, New South Wales, Australia, led by dentists Dr George Chammas and Dr Mita Dahal. The practice offers a comprehensive range of services including general, cosmetic, and advanced dentistry such as dental implants, orthodontics, and sleep dentistry. It was recognised with a Local Business Award for Outstanding Health Improvement Service in the St George region in 2024.

Industry: Dental Healthcare Services
Address: Hurstville, NSW, Australia

Attack summary

Severity: high — The disclosure status is 'data_published', indicating exfiltration and release of data from a dental healthcare provider, which likely includes patient PII and protected health information. However, no specific data volume or confirmed proof files are documented, and the leak post content does not clearly reference GC Dental.

The Spacebears ransomware group has listed GC Dental with a disclosed status of 'data_published', indicating data has been exfiltrated and published. Note: the group's leak post text describes Johnson & Johnson Innovative Medicine rather than GC Dental, suggesting possible misattribution or a copy-paste error in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Patient records
Personal health information
Contact details
Appointment and treatment data

What the group claims

A Sensational Smile Can Be Yours at GC DentalWelcome to GC Dental, where our priority is your comfort, confidence, and health. Hurstville Dentists Dr George Chammas and Dr Mita Dahal and their team provide a complete dental experience tailored to your needs, ensuring you receive care that supports your wellbeing and lifestyle. From routine check-ups to advanced cosmetic and restorative options, our services are designed to bring out your best smile.- Database- Personal data of patients https://www.gcdental.com.au/

The leak post

captured from the group's site

## Johnson & Johnson Innovative Medicine
Johnson & Johnson Innovative Medicine (formerly known as Janssen Pharmaceuticals) is the pharmaceutical division of the American corporation Johnson & Johnson, specializing in the development and production of revolutionary medicines. The company focuses on creating treatments for the most complex diseases, transforming the future of healthcare.

Sources

Victim sitewww.gcdental.com.au
Leak posthttp://5butbkrljkaorg5maepuca25oma7eiwo6a2rlhvkblb4v6mf3ki2ovid.onion/companies/110/gc-dental

Source

Indexed 4 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 Spacebears

Spacebears is a recently emerged ransomware group first observed in April 2024, operating with apparent financial motivations and demonstrating a broad targeting approach across multiple sectors and geographic regions. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their targeting pattern suggests a professional operation focused on maximizing financial returns rather than geopolitical objectives. With 117 known victims since their emergence, Spacebears has shown particular focus on organizations in the United States, Germany, Spain, Italy, and Canada, with their attacks primarily affecting technology, healthcare, manufacturing, and business services sectors, indicating they likely employ opportunistic targeting rather than sector-specific specialization. Their attack methodology, initial access vectors, and specific technical capabilities have not been extensively documented in public reporting from major cybersecurity firms or law enforcement agencies, limiting detailed analysis of their operational procedures and tools. Due to the group's recent emergence and limited public intelligence reporting, notable high-profile campaigns and specific victim details remain largely undocumented in established threat intelligence channels. The group's current operational status appears active given their recent emergence timeline, though comprehensive analysis is constrained by the lack of detailed public reporting from authoritative cybersecurity sources. The group has been linked to 176 public disclosures across our corpus. First observed on a leak site on April 29, 2024; most recent post June 11, 2026. The operation is currently active.

Also tracked as: space bears.

Timeline of this disclosure

February 4, 2026GC Dental listed by Spacebearson the group's public leak site

Other recent disclosures by Spacebears

Spacebears has been linked to 176 public victims on Darkfield. A sample of the most recent:

See the full Spacebears dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,780 disclosures indexed across all operators we track. Geographically, GC Dental is reported in South Korea, a country with 32 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Spacebears means GC Dental 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 Spacebears'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.