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

January 13, 2026Collett Hulance listed by beaston the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, Collett Hulance is reported in United Kingdom, a country with 902 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

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Collett Hulance

Claimed by beast · listed 4 months ago

Age

since listed · data leaked

Status timeline

Listed
Jan 13, 2026
Data leaked

At a glance

Group: beast
Status: Data leaked
Country: United Kingdom
Sector: Not Found
Listed on leak site: Jan 13, 2026

About the victim

AI dossier — public-source company profile

Collett Hulance is a small, long-established firm of Chartered Certified Accountants based in Bedford, UK. The firm provides a full range of accounting and taxation services including year-end accounts, tax returns, bookkeeping, VAT, payroll, audit, and tax planning. They serve clients both locally and nationwide across sectors including agriculture, property development, healthcare, construction, and independent schools.

Industry: Chartered Certified Accountancy & Taxation Services
Address: 40 Kimbolton Road, Bedford, MK40 2NR, United Kingdom
Employees: 1-10

Attack summary

Severity: critical — Collett Hulance is an accountancy firm handling regulated financial and personal data for numerous clients across multiple sectors. Data publication by the group means confirmed exfiltration of highly sensitive PII and financial records at scale, including tax returns, payroll, and audit files — all of which constitute regulated data subject to GDPR and financial privacy obligations.

The Beast ransomware group claims to have attacked Collett Hulance and has published data (disclosed status: data_published). Given the nature of the firm, the data at stake is likely to include sensitive client financial records, tax returns, payroll data, and personal financial information.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Client financial records
Tax returns
Payroll data
Bookkeeping and VAT records
Audit files
Personal financial information
Business accounts documentation

What the group claims

Collett Hulance is a Chartered Certified Accountants firm based in Bedford, UK, offering a range of accounting and taxation services including year-end accounts, tax returns, bookkeeping, payroll, audit, and tax planning. The firm caters to various sectors such as agriculture, property development, healthcare, construction, and independent schools. Their dedicated team aims to relieve clients of regulatory stress and support them in managing their business and personal financial affairs. Collett Hulance seeks to build long-lasting professional relationships with clients, both locally and nationwide.

The leak post

captured from the group's site

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 E D

Sources

Victim sitewww.colletthulance.co.uk
Leak posthttp://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/collett_hulance

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.