Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Bellsonica Corporation

listed as bellsonica.co.jp · Claimed by NoEscape · listed 3 years ago

33m
Age
since listed · data leaked

Status timeline

  1. ListedOct 3, 2023
  2. Data leakeddate unknown

At a glance

Group
NoEscape
Status
Data leaked
Country
Japan
Sector
Technology
Listed on leak site
Oct 3, 2023

About the victim

AI dossier — public-source company profile

Bellsonica Corporation (bellsonica.co.jp) is a Japanese manufacturer primarily known as a supplier of pressed steel parts and automotive components, operating within Japan's automotive supply chain. The company is associated with the Toyota group of suppliers. Its operations are concentrated in Japan, serving major automotive OEMs.

Industry
Automotive Parts Manufacturing

Attack summary

Severity: high — The disclosure status is data_published, meaning exfiltrated data has been released publicly. As an automotive parts manufacturer linked to major OEMs, leaked data likely includes sensitive business, engineering, and employee information. The confirmed publication of data elevates this beyond medium severity.

The NoEscape ransomware group claims to have attacked Bellsonica, with the disclosure status recorded as data_published, indicating that data exfiltrated from the company has been released or made available on the group's leak site. No further details on specific data categories or volume were captured in the leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Corporate business data
  • Potentially proprietary manufacturing data
  • Employee records (inferred)
  • Financial documents (inferred)

Sources

Source

Indexed 3 years 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About NoEscape

NoEscape is a financially motivated ransomware group that emerged in mid-2023, rapidly establishing itself as a significant threat with 249 documented victims across multiple sectors. The group's origins and affiliations remain largely undocumented by major security agencies, though their operational patterns suggest they likely operate independently rather than as a Ransomware-as-a-Service model. NoEscape demonstrates sophisticated attack methodologies targeting critical infrastructure and essential services, with their campaigns showing a clear preference for high-value targets in government, healthcare, education, finance, and manufacturing sectors across developed nations, particularly focusing on the United States, United Kingdom, Italy, France, and Australia. The group's rapid victim accumulation rate since their June 2023 emergence indicates an aggressive operational tempo and effective attack capabilities, though specific technical details about their initial access vectors, encryption methods, and extortion tactics have not been extensively documented in public threat intelligence reports from major security agencies. As of current intelligence assessments, NoEscape appears to remain an active threat with no documented law enforcement disruptions or confirmed rebranding activities. The group has been linked to 249 public disclosures across our corpus. First observed on a leak site on June 12, 2023; most recent post December 4, 2023. The operation is currently inactive.

Timeline of this disclosure

  • October 3, 2023bellsonica.co.jp listed by NoEscapeon the group's public leak site

Other recent disclosures by NoEscape

NoEscape has been linked to 249 public victims on Darkfield. A sample of the most recent:

See the full NoEscape dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track. Geographically, bellsonica.co.jp is reported in Japan, a country with 220 ransomware disclosures in our corpus.

If your organisation is affected

A listing by NoEscape means bellsonica.co.jp appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, JPCERT/CC (Japan), as required for your jurisdiction.
  • Monitor for the data appearing on NoEscape's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.