Kobayashi Pharmaceutical Co. Ltd.
bd_0c17a44d491b4e4a · schema v1 · pii pii-v1
Full breach record for Kobayashi Pharmaceutical Co. Ltd. →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Worldleaks on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
Kobayashi Pharmaceutical Co. Ltd. is a Japanese company that specializes in the manufacturing and sale of over-the-counter drugs, oral hygiene products, and healthcare items. Their extensive product line-up includes cool fever patches, pain relief patches, skin creams, oral care products, and other health-related goods garnering a global presence. They focus on enhancing everyday health and comfort for their customers.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Oct 24, 2025
Claim posted
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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.
Claim → filing
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Compliance clock
Not assessable
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.
No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.
worldleaks
According to ransomware.live, World Leaks emerged in January 2025 as a rebrand of the Hunters International ransomware operation, shifting its focus from file encryption to solely stealing sensitive data and threatening to leak it unless a ransom is paid