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high severity December 12, 2023 · 3 min read Unverified claim — what this is

kitahirosima.jp Listed by lockbit3 Ransomware Group

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

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

kitahirosima.jp Listed by lockbit3 Ransomware Group

On December 12, 2023, the Japanese municipality of Kitahiroshima appeared on the LockBit 3.0 ransomware leak site with a 30 GB archive of internal files exfiltrated during a ransomware attack. Anyone whose personal information, employee records, or family details are stored in local-government systems in that region may now be exposed.

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Reported Details from the Listing

The LockBit 3.0 leak page states that attackers stole and are prepared to publish 30 GB of internal files from kitahirosima.jp. The disclosure does not specify the exact number of affected individuals, nor does it list the precise data types contained in the archive. It simply states that data was exfiltrated during a ransomware intrusion and is now hosted for anyone to download unless the municipality meets the group’s extortion demands. The listing does not provide a public ransom amount or a firm publication deadline.

Why This Matters for You and Your Family

Local government networks routinely hold names, addresses, dates of birth, tax records, family registers, and sometimes children’s school or medical information. When these records leave municipal control, they become permanent currency for identity thieves, loan fraud, and spear-phishing campaigns. Even if you never directly interacted with Kitahiroshima city services, your data may have been shared with them through regional partnerships, vendor contracts, or household registrations. The breach therefore creates a concrete risk that your family’s most sensitive identifiers may now be circulating beyond official oversight.

Doxxing and Identity-Chain Risks

Exposed internal files frequently contain spreadsheets that link email addresses, phone numbers, employee IDs, and physical addresses. Attackers and opportunistic criminals can chain these fragments with username handles found in other breaches, building a complete profile that leads directly to social-media accounts, children’s gaming profiles, and online banking portals. A single leaked municipal document can therefore trigger cascading account takeovers that reach far beyond the original breach. Credential leaks like this one routinely cascade into gaming-account compromises for both adults and children because the same email-password pairs are reused across municipal portals and Steam, Roblox, or Discord.

LockBit 3.0 Track Record

Public reporting attributes the LockBit 3.0 operation to a ransomware-as-a-service model that first gained prominence in early 2020 and rebranded to version 3.0 in mid-2022. The group has targeted hospitals, schools, manufacturers, and multiple local governments across North America, Europe, and Asia. Their typical playbook involves initial access through compromised remote-desktop credentials or vulnerable web applications, followed by rapid exfiltration of sensitive folders before encryption. They then publish samples on their leak site and pressure victims with threats to release the full archive or sell it to third parties. The Kitahiroshima listing follows this exact pattern.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by specialists.
  • Rotate any password you have ever used on kitahirosima.jp or related municipal portals, and enable 2FA through an authenticator app everywhere that password was reused.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours rather than months.
  • 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 parent email.
  • Let remediation specialists manage takedown requests for any personal documents already appearing on data-broker or extortion sites.

The speed with which ransomware groups move stolen municipal data shows that waiting for official notifications is no longer sufficient. Start your DoxxScan trial today; its continuous monitoring, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage—including children’s gaming accounts—give you and your family the earliest warning and the fastest path to containment when the next breach occurs. Source: LockBit 3.0 leak site listing (via ransomware.live).

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

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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 December 12, 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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