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high severity March 27, 2023 · 3 min read Unverified claim — what this is

FURUNO Listed by stormous Ransomware Group

If you are a customer of Furuno, here’s what is being claimed, and what it would mean for you.

Furuno was listed on Stormous's leak site. Stormous claims to have stolen internal data. This is the group's claim, not a confirmed finding.

FURUNO Listed by stormous Ransomware Group

On March 27, 2023, Furuno Spain S.A. appeared on the leak site operated by the Stormous ransomware group. The listing states that internal files were exfiltrated during a ransomware attack on the Spanish subsidiary of the Japanese marine electronics manufacturer. The disclosure does not specify the number of records affected, the exact data types beyond “internal files,” or any ransom demand.

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Details in the Primary Listing

The Stormous leak site entry, still accessible via the .onion link, states that data was stolen from Furuno Spain S.A., the Madrid-based unit established in 1992 to distribute marine radar, sonar, and navigation systems across Europe. It presents screenshots and a partial file tree as proof of successful exfiltration but does not quantify the volume or list specific categories such as customer databases or employee records. The parent company, Furuno Electric Co. Ltd., headquartered in Nishinomiya, Japan, has not published its own breach notification detailing the incident.

Why This Matters for You and Your Family

Even when a breach hits a business rather than a consumer service, the consequences reach ordinary people. If you or anyone in your household has purchased Furuno marine electronics, worked with one of its authorized distributors, or had your details stored in dealer, warranty, or service records, those details may now sit in an attacker’s archive. Internal files frequently contain names, addresses, phone numbers, email addresses, and payment information. Once exposed, this data can be sold or reused for months or years, increasing the chance that you receive targeted phishing emails, vishing calls pretending to be from a marine supplier, or identity-theft attempts tied to your real-world location and purchases.

The Doxxing and Identity-Chain Risk

Stolen internal files often create long identity chains. An email address found in a dealer spreadsheet can be cross-referenced with gaming accounts, social-media handles, or family-member records. Attackers then map these connections to build a complete profile, enabling doxxing, account takeovers, or extortion attempts against you or your children. Credential leaks of this nature routinely cascade into gaming-platform compromises because the same password or recovery email is reused across work, shopping, and entertainment services.

Stormous Group Track Record

Public reporting attributes the first significant activity by Stormous to late 2021. The group has since listed dozens of organizations across manufacturing, healthcare, and technology sectors. Its typical playbook involves initial access through compromised remote-desktop credentials or unpatched web applications, followed by exfiltration of internal shares before encryption. Stormous then posts samples on its leak site and demands payment to prevent full publication, a double-extortion style now standard among ransomware operators. The Furuno Spain listing fits this pattern exactly.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours rather than months.
  • Rotate any password you have used with Furuno Spain, its distributors, or related marine-electronics accounts, and switch to 2FA through an authenticator app instead of SMS.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts that often chain back to the same address or recovery email.
  • Let remediation specialists manage takedown requests for any personal data already appearing on broker sites or paste services linked to this incident.

The incident underscores that even specialized industrial suppliers can become ransomware targets, and the data they hold about customers and partners can fuel identity crimes long after the initial listing. Starting a DoxxScan trial gives your family continuous monitoring, AI-powered identity-chain mapping, and hands-on help from specialists who understand how these leaks spread to gaming accounts and personal profiles. Source: Stormous leak site via ransomware.live

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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Report details & sourcing

Severity High
Disclosed March 27, 2023
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
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