Disclosure context

About bqtlock

Based on available intelligence, bqtlock is a recently emerged ransomware group first observed in July 2025, with documented attacks against at least five victims and appears to be financially motivated. The group's origin and affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their targeting pattern suggests possible operation from regions outside their primary victim countries. Attack methodologies and technical capabilities have not been extensively documented by major security firms, though the group appears to focus on opportunistic targeting across diverse sectors including technology, public sector, and educational institutions. The ransomware primarily targets organizations in the United States and United Arab Emirates, suggesting either specific regional interests or exploitation of common vulnerabilities in these markets. Due to the group's recent emergence and limited public reporting from authoritative sources like CISA, FBI, or established security researchers, detailed information about their specific tools, tactics, and procedures remains undocumented in open-source intelligence. The group appears to remain active as of their recent identification in mid-2025, though their operational scale and long-term persistence remain to be determined. The group has been linked to 5 public disclosures across our corpus. First observed on a leak site on July 31, 2025; most recent post October 11, 2025. The operation is currently inactive.

Timeline of this disclosure

July 31, 2025eFunda, Inc. listed by bqtlockon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, eFunda, Inc. 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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eFunda, Inc.

Claimed by bqtlock · listed 10 months ago

Age

since listed · data leaked

Status timeline

Listed
Jul 31, 2025
Data leaked

At a glance

Group: bqtlock
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Jul 31, 2025

About the victim

AI dossier — public-source company profile

eFunda, Inc. operates an online reference platform for engineers offering calculators, design tools, formulas, materials databases, and community forums. Founded in 1999, the company provides resources for mechanical engineering, materials science, and industrial design.

Industry: Engineering Software & Online Reference
Founded: 1999

Attack summary

Severity: medium — Confirmed breach of a technology/reference platform with 270+ subdomains affected, but no explicit proof files shown and no specific sensitive data types (PII, financial, medical) confirmed in the post. Data size and exfiltration details not disclosed.

The bqtlock group claims to have compromised eFunda and lists 270+ subdomains in the leak post. No specific data exfiltration details or proof files are described in the available leak post excerpt.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Web infrastructure & subdomains
User database (potential)
Engineering reference content
Forum/community data (potential)

What the group claims

efunda.com (270+ subdomains)

Sources

Victim siteefunda.com
Leak posthttp://yywhylvqeqynzik6ibocb53o2nat7lmzn5ynjpar3stndzcgmy6dkgid.onion

Source

Indexed 10 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.