Jiei Co., Ltd
bd_0f21b3806b590e3d · schema v1 · pii pii-v1
Full breach record for Jiei Co., Ltd →2 incidents on fileThreat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Thegentlemen 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
https://jieithai.com JIEI (Thailand) Co., Ltd. was founded in November 2011 as a member company of the Kasei Kogyo Co., Ltd. group. Active in business since 1966, the Kasei Kogyo group, with a core focus on rubber extrusion for automobile use, has arrived at the present together with the development of the world's automotive industry. Through a variety of processes, from planning and development in industrial methods to production, we place a priority on responding to global demands and are involved in precision and quality product manufacturing using advanced technology that can respond to the needs of many types of customers, all from our bases in not only Japan but also North America, China, and Asia.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Jun 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.
thegentlemen
According to ransomware.live, The Gentlemen is a RaaS group that emerged in July–August 2025, rapidly claiming over 320 victims across 17+ countries by offering affiliates a 90% revenue share, deploying a Go-based locker against Windows, Linux, NAS, and BSD systems; a compromised C2 server in 2026 revealed more than 1,570 linked victims.