Disclosure context

About qilin

Qilin is a ransomware group that emerged in October 2022, operating with primarily financial motivations through targeted attacks against organizations across multiple sectors. The group appears to operate independently with limited public information available regarding their specific country of origin or affiliations to other ransomware families. Qilin employs double extortion tactics, typically exfiltrating sensitive data before deploying their encryption payload, though specific details about their initial access vectors and technical tools remain less documented in public security research. The group has demonstrated a broad targeting approach, with their 1645 known victims spanning multiple countries including the United States, France, Canada, United Kingdom, and Germany, with particular focus on manufacturing, technology, healthcare, and business services sectors. Based on available intelligence reporting, Qilin remains an active threat as of recent assessments, continuing their ransomware operations without significant reported law enforcement disruption. The group has been linked to 1,858 public disclosures across our corpus. First observed on a leak site on October 8, 2022; most recent post May 21, 2026. The operation is currently active.

Timeline of this disclosure

May 9, 2026Lindabury listed by qilinon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Financial Services sector, which has 516 disclosures indexed across all operators we track. Geographically, Lindabury is reported in US, a country with 2,713 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

Lindabury

Claimed by qilin · listed 12 days ago

11d

Age

since listed · data leaked

Status timeline

Listed
May 9, 2026
Data leaked

At a glance

Group: qilin
Status: Data leaked
Country: US
Sector: Financial Services
Listed on leak site: May 9, 2026

About the victim

AI dossier — public-source company profile

Lindabury, McCormick, Estabrook & Cooper, P.C. is a New Jersey-based law firm founded in 1954 with over 40 attorneys across 5 offices in New Jersey, New York, and Pennsylvania. The firm provides litigation and transactional legal counsel to a broad range of clients including corporations, financial institutions, healthcare organizations, nonprofits, and individuals. Practice areas include business law, family law, estate planning, and dispute resolution.

Industry: Legal Services (Business & Family Law)
Address: Westfield, New Jersey (multiple offices throughout NJ, NY, and PA; primary contact 908.233.6800)
Employees: 51-200
Founded: 1954

Attack summary

Severity: critical — Lindabury is a law firm handling highly sensitive attorney-client privileged data across corporate, financial, healthcare, estate planning, and family law matters. Data publication by Qilin likely exposes regulated PII at scale, privileged legal communications, and confidential business records for a wide range of institutional and individual clients — meeting the threshold for critical severity.

The Qilin ransomware group claims to have attacked Lindabury and has published data (disclosed_status: data_published), though the leak post itself contains no additional detail on encryption or specific exfiltration claims. No ransom amount or data size was stated.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Client legal files
Attorney-client privileged communications
Corporate transaction records
Estate planning documents
Family law case files
Employee records
Financial and billing records

What the group claims

N/A

The leak post

captured from the group's site

Qilin blog Sorting Created At Name Bluize Software Company url Zoom Info May 13, 2026 0 photos Learn More Mayer Law Firms & Legal Services Company url Zoom Info May 13, 2026 0 photos Learn More Spirit Medical Transport Ambulance Services Company url Zoom Info May 13, 2026 0 photos Learn More Domaine Des Tournels Manufacturing Company url May 13, 2026 0 photos Learn More Johnson Carter Architects Architecture, Engineering & Design Company url Zoom Info May 13, 2026 0 photos Learn More LTJ Industrial Services Industrial Machinery & Equipment Company url Zoom Info May 13, 2026 0 photos Learn More Brand X Hydrovac Services Civil Engineering Construction Company url Zoom Info May 13, 2026 0 photos Learn More John G Yphantides A Professional Law Law Firms & Legal Services Company url Zoom Info May 13, 2026 0 photos Learn More One Legal Law Firms & Legal Services Company url Zoom Info May 13, 2026 0 photos Learn More The Gravity Group Architecture, Engineering & Design Company url Zoom Info May 12, 2026 3 photos Learn More Mediapost Spain Advertising & Marketing Company url Zoom Info May 12, 2026 13 photos Learn More + 6 more AppDirect Software Company url Zoom Info May 11, 2026 0 photos …

Sources

Source

Indexed 12 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.