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high severity January 30, 2023 · 3 min read Unverified claim — what this is

fujikura.co.jp Listed by lockbit3 Ransomware Group

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

We gained access to the main office and to all branches of the company around the world! Domains to which access was obtained and from where we pumped the data (the number of PCs is indicated in brackets):FETL(360), FECL(61), DDK1TH(105), pcttfet...

— from LockBit’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
fujikura.co.jp Listed by lockbit3 Ransomware Group

Fujikura, the Japanese multinational manufacturer of electrical wiring and fiber-optic products, was listed on the LockBit 3.0 ransomware leak site on January 30, 2023. The listing indicates that the company’s internal files were exfiltrated during a ransomware attack that reached its main office and every international branch. Anyone whose personal information appears in those stolen files now faces heightened risk of identity theft, credential abuse, and targeted fraud.

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Reported Details from the Listing

The LockBit 3.0 leak page states that attackers obtained access to domains including FETL (360 PCs), FECL (61 PCs), DDK1TH (105 PCs), and pcttfet, among others. It claims the group “gained access to the main office and to all branches of the company around the world” and successfully exfiltrated data. The disclosure does not quantify the total number of affected individuals, nor does it list specific record types such as customer databases or employee spreadsheets. It simply states that internal files were exfiltrated following a ransomware deployment.

Why This Matters for You and Your Family

When a global manufacturer like Fujikura suffers a breach, the exposed data often includes employee records, vendor contracts, and partner contact details. If you or any member of your family has ever worked at Fujikura, supplied materials to them, or had business dealings with any of their worldwide branches, your information could be sitting in the attackers’ archive. Even a single leaked email address paired with a reused password creates an immediate pathway for account takeovers that can cascade into banking fraud, tax fraud, or medical-identity theft affecting your entire household.

The Doxxing and Identity-Chain Risk

Ransomware groups rarely stop at one dataset. A stolen internal spreadsheet can link an employee’s work email to their personal phone number, home address, or children’s names. Those details then become the foundation for doxxing chains that surface on dark-web forums and criminal marketplaces. Public reporting on similar incidents shows that once an identity chain is mapped—email to phone, phone to gaming username, username to family photos—targeted harassment, SIM-swapping, and spear-phishing attacks become dramatically easier. Credential leaks like this one frequently cascade into account takeovers on gaming platforms, exposing children’s accounts that share the same household address or recovery email.

LockBit 3.0’s Known Track Record

Public reporting attributes LockBit’s initial emergence to 2019, with the rebranded LockBit 3.0 appearing in early 2022. The group has targeted organizations across manufacturing, healthcare, education, and local government. Its typical playbook involves stealthy initial access through phishing or exploited remote-desktop services, followed by rapid lateral movement across corporate networks, data exfiltration, and then dual extortion: demanding ransom for decryption keys while threatening to publish stolen files on its leak site if payment is not made. The Fujikura listing follows this exact pattern, with the group publishing screenshots and partial file trees to pressure the victim.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, including cleanup of exposed records.
  • Rotate any password you ever used at Fujikura or its subsidiaries anywhere it has been reused, and immediately enable 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure of your data is caught in hours, not months.
  • Cover the household—DoxxScan family coverage extends to dependents and children’s gaming accounts that often chain back to the same address or recovery details leaked in incidents like this.
  • Let remediation specialists handle takedown requests across data brokers and extortion sites on your behalf while you focus on securing your accounts.

The Fujikura breach is a reminder that even large, established manufacturers remain targets, and the data they hold about ordinary employees and partners can fuel long-term identity crimes. Starting proactive defense now limits how far attackers can travel down the identity chain created by this and future leaks. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, with household coverage that includes children’s gaming accounts vulnerable to credential-stuffing attacks.

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 the filing does not enumerate what was exposed
Disclosed January 30, 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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