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GLOBALMalwareManufacturingManufacturingRansomwareThegentlemenRansom DemandedActor NamedMedium

Omikenshi

bd_dfcabcb92c90a454 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Mar 23, 2026

To disclose

Affected

Not disclosed

Linked

2 filings

Confidence

50%
Full breach record for Omikenshi

Threat-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.

Group activity: ManufacturingDiscovered: 2026-03-23

Source: Ransomware.live

Post text · scraped from the leak site

omikenshi.co.jp zoominfo.com/c/omikenshi-co-ltd/372144961 Omikenshi specializes in the production of textiles, including cotton and yarn, as well as advanced processing technologies. The company also offers a range of lifestyle products, cosmetics, and software development services. Their intended clients include businesses seeking office supplies and electronic catalogs. Additionally, Omikenshi is committed to environmental sustainability and actively engages in eco-friendly practices

Incident timeline — mostly unverified

? — ?

Breach window unknown

Mar 23, 2026

Claim posted

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Claim → filing

Compliance clock

Not assessable

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings

View merged incident ↗
PressMar 16 · first
Leak Site+7d · this page

Pattern: first filing Mar 16, last Mar 23 — a 7-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

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.

About this groupFirst seen 2023-02-28

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.

870 tracked hereFull profile →