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, 2026Lewis Drug listed by AiLockon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Consumer Services sector, which has 396 disclosures indexed across all operators we track. Geographically, Lewis Drug 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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Lewis Drug

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: Consumer Services
Listed on leak site: Mar 3, 2026

About the victim

AI dossier — public-source company profile

Lewis Drug is a regional chain of drug and pharmacy stores founded in 1942 and headquartered in Sioux Falls, South Dakota. The company operates numerous retail locations offering prescription and non-prescription drugs, groceries, health and beauty products, seasonal goods, and photo processing services. Lewis Drug serves communities primarily across South Dakota and surrounding states.

Industry: Pharmacy & Drug Store Retail
Employees: 1001-5000
Founded: 1942

Attack summary

Severity: critical — Lewis Drug operates pharmacies handling prescription drug records and patient health information regulated under HIPAA. A confirmed data publication by a ransomware group against a pharmacy chain constitutes a critical disclosure due to the high likelihood of regulated medical and PII data exposure at scale.

AiLock claims to have compromised Lewis Drug and has published data, though no specific data volume or ransom amount was stated. Given Lewis Drug operates pharmacies, the potential exposure includes prescription records and related personally identifiable and medical information.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Prescription records
Patient/customer PII
Non-prescription purchase data
Employee records
Business operational data

What the group claims

Founded in 1942, Lewis Drug owns and operates a chain of drug and pharmacy stores.It provides prescription and non-prescription drugs.

Sources

Victim sitelewisdrug.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.