Tomoku Co., Ltd.
bd_390b7820b35c8975 · schema v1 · pii pii-v1
Full breach record for Tomoku Co., Ltd. →Press / market disclosure — not a breach-notification filing
A media or market posting that confirms an incident but carries no breach-notification fields, so compliance clocks aren't assessable. The summary below is extracted from the coverage and machine-translated to English — verify against the source.
Summary
machine-translatedNotice regarding system disruption caused by unauthorized access. Tomoku Co., Ltd.: On May 3, 2025, Tomoku Co., Ltd. suffered a ransomware attack that encrypted some of its servers, causing a failure of its online ordering system. Despite this disruption, orders via the web, fax, and email, as well as the company's website and email systems, are functioning normally, allowing production to continue. The company is currently collaborating with external experts and the police to investigate the incident and restore its systems. Linked ransomware group: gunra.
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Incident timeline — mostly unverified
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Breach window unknown
May 3, 2025
Press report
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No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Attack → press
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Compliance clock
Not assessable
Linked disclosures
Why this link?Ransomware claims (1)
- Leak Sitegunrabd_f5fd419ac3d9228f2025-04-14 · +19dCandidate
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.
If an SEC 8-K, state-AG notice or victim statement lands, DisclosureLens merges it into an incident and links it here.
Source ceiling
- incident type + narrative only (may be machine-translated)
- discovery date
- materiality
- affected count
- data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.
gunra
According to ransomware.live, Gunra is a financially motivated ransomware group that emerged in April 2025, using double-extortion tactics against real estate, pharmaceuticals, and manufacturing sectors across Japan, Egypt, Panama, Italy, and Argentina, deploying separate Windows and Linux variants with a strict five-day payment deadline.