Disclosure context

About AiLock

AiLock is an emerging ransomware group first observed in March 2026 with a primarily financial motivation, having targeted at least 24 known victims across multiple sectors. The group's origin and affiliations remain largely undocumented by major threat intelligence organizations, though their targeting patterns suggest a broad operational scope spanning the United States, Canada, Great Britain, China, and Germany. Based on publicly available information from security researchers, AiLock appears to focus on technology companies, consumer services, manufacturing, and public sector entities, though specific attack methodologies, initial access vectors, and encryption techniques have not been extensively documented by CISA, FBI, or major security firms. The group's relatively recent emergence and limited public documentation suggest they may be a smaller operation or newly formed entity, with no notable major campaigns or high-profile ransoms publicly reported by established threat intelligence sources. Given the March 2026 first observation date and lack of subsequent major public reporting, AiLock's current operational status and capabilities remain largely undetermined by mainstream cybersecurity organizations. The group has been linked to 34 public disclosures across our corpus. First observed on a leak site on March 3, 2026; most recent post May 18, 2026. The operation is currently active.

Timeline of this disclosure

March 3, 2026Aaronson Rappaport Feinstein & Deutsch listed by AiLockon 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, Aaronson Rappaport Feinstein & Deutsch is reported in United States, a country with 7,392 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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Aaronson Rappaport Feinstein & Deutsch

Claimed by AiLock · listed 3 months ago

Age

since listed · data leaked

Status timeline

Listed
Mar 3, 2026
Data leaked

At a glance

Group: AiLock
Status: Data leaked
Country: United States
Sector: Not Found
Listed on leak site: Mar 3, 2026

About the victim

AI dossier — public-source company profile

Aaronson Rappaport Feinstein & Deutsch, LLP is a New York-based defense law firm specializing in medical malpractice, construction litigation, product liability, health care law, and related practice areas. The firm represents hospitals, physicians, insurers, manufacturers, property owners, and municipalities. With 16 or more attorneys recognized in Super Lawyers and Best Lawyers rankings, the firm operates at significant scale within the New York Metro legal market.

Industry: Legal Services – Defense Litigation (Medical Malpractice, Construction, Product Liability)
Address: New York, NY, United States
Employees: 51-200

Attack summary

Severity: critical — The victim is a defense law firm handling medical malpractice and healthcare litigation, meaning exfiltrated data almost certainly includes attorney-client privileged communications, sensitive medical records, PII of plaintiffs and defendants, and confidential case strategy — all constituting highly regulated and sensitive data. Data has been published, confirming exfiltration.

The AiLock ransomware group claims to have compromised Aaronson Rappaport Feinstein & Deutsch, LLP and has published data (disclosed status: data_published). The post describes the firm and its practice areas but does not specify the volume of exfiltrated data or whether encryption was performed.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Client legal files
Medical malpractice case records
Litigation documents
Attorney-client privileged communications
Personal injury claim records
Health care client data

What the group claims

Aaronson Rappaport Feinstein and Deutsch, LLP is a New York-based law firm that specializes in providing legal services across various practice areas, including medical malpractice, construction litigation, and product liability.

Sources

Victim sitearfdlaw.com

Source

Indexed 3 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.