Nippon Steel USA
bd_739b9c23ada25c1b · schema v1 · pii pii-v2
Full breach record for Nippon Steel USA →2 incidents on fileThreat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Metaencryptor 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
Nippon Steel Corporation is Japan’s largest steelmaker and one of the world’s leading steel producers. Headquartered in Tokyo, the company manufactures and supplies advanced steel products for the automotive, construction, energy, infrastructure, and industrial sectors. Nippon Steel operates globally through a large network of subsidiaries and production facilities, with annual revenue of approximately $67 billion and more than 138,000 employees.
J jump to incidentP pin to compareR raw source
Incident timeline — mostly unverified
? — ?
Breach window unknown
Sep 15, 2026
Claim posted
—
No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
—
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.
metaencryptor
According to ransomware.live, MetaEncryptor is a ransomware group first observed in mid-2023, targeting medium-to-large enterprises in legal, technology, logistics, manufacturing, and finance sectors primarily in the UK, Europe, and Southeast Asia, using AES-256/RSA-2048 encryption and double extortion.