Disclosure context

About beast

The Beast ransomware group is a relatively new threat actor that emerged in July 2025, operating with apparent financial motivations through their ransomware campaigns. With limited public documentation available from major security agencies, the group has demonstrated activity primarily targeting victims across the United States, United Kingdom, Brazil, South Korea, and Argentina, accumulating approximately 65 known victims since their emergence. Their targeting pattern shows a focus on healthcare organizations, manufacturing companies, educational institutions, and construction firms, suggesting an opportunistic approach rather than highly specialized sector expertise. The group's recent emergence means there is insufficient public intelligence from CISA, FBI, Mandiant, or other established security researchers regarding their specific attack methodologies, initial access vectors, or technical capabilities. Given the timeline of their first observation in mid-2025, Beast represents an active and emerging threat with their current operational status remaining unclear due to limited threat intelligence reporting from authoritative sources. The group has been linked to 75 public disclosures across our corpus. First observed on a leak site on July 29, 2025; most recent post May 21, 2026. The operation is currently active.

Timeline of this disclosure

April 24, 2026Lessard Dental listed by beaston the group's public leak site

Ransom demanded: $23.83

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, Lessard Dental is reported in CA, a country with 278 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

← All victims

Lessard Dental

Claimed by beast · listed 27 days ago

$23.83

Ransom

demanded

26d

Age

since listed · data leaked

Status timeline

Listed
Apr 24, 2026
Data leaked

At a glance

Group: beast
Status: Data leaked
Country: CA
Sector: Healthcare
Listed on leak site: Apr 24, 2026
Ransom demanded: $23.83

About the victim

AI dossier — public-source company profile

Lessard Dental is a family dental practice located in West Edmonton, Alberta, Canada, operating just minutes from West Edmonton Mall. The clinic offers a comprehensive range of services including cosmetic dentistry, dental implants, orthodontics, sedation dentistry, and emergency care. It is led by Dr. Ahmad Fayad (owner) alongside two associate dentists and a support team, serving patients of all ages across surrounding neighbourhoods.

Industry: Dental Healthcare
Address: West Edmonton, Alberta, Canada
Employees: 1-10

Attack summary

Severity: critical — A dental practice holds regulated health/medical records (PII combined with clinical data) subject to Canadian privacy legislation (PIPEDA/Alberta HIA). The 'data_published' status confirms exfiltration and public release of sensitive patient health information, meeting the critical threshold.

The Beast ransomware group claims to have attacked Lessard Dental and has published data ('data_published' status), indicating exfiltration of patient and/or practice records from a small family dental clinic. No ransom amount or explicit data volume was stated in the post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Patient personal information
Dental treatment records
Health/medical records
Appointment and scheduling data
Billing and financial records
Staff and practitioner information

What the group claims

Lessard Dental is a family dental practice located in West Edmonton, offering a wide range of services including cosmetic dentistry, dental implants, orthodontics, and emergency care. The clinic is dedicated to providing personalized care tailored to the unique needs of each patient, ensuring a comfortable experience for individuals of all ages. With a team of experienced dentists, they focus on promoting long-term oral health and beautiful smiles. Lessard Dental welcomes new patients and is committed to making dental visits a positive experience.

The leak post

captured from the group's site

[ 2fORM Architecture specializes in innovative sustainable architecture, offering design services for residential, commercial, and interior projects. Their portfolio includes a diverse range of developments, such as multi-family housing, health care facilities, and various remodels. The company aims to serve clients in the Pacific Northwest, including individual homeowners, businesses, and institutions. With a commitment to sustainability and creativity, 2fORM Architecture enhances the built environment through thoughtful design. ](http://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/2form_architecture)[ ACMARK s r o is a company that operates in the Repair Services industry. It employs 10to19 people and has 1Mto5M of revenue. The company is headquartered in Brno, South Moravian, Czech Republic. ](http://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/acmark)[ AJU Pharm Co., Ltd. is a prominent South Korean total healthcare company founded in 1953. For over 70 years, it has evolved from a manufacturer of raw materials into a global pharmaceutical group specializing in prescription drugs, medical devices, and health supplements P U B L I S H…

Screenshot of the leak post

Sources

Victim sitewww.lessarddental.com
Leak posthttp://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/lessard_dental

Source

Indexed 27 days 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.