DisclosureLens
GLOBALMalwareManufacturingManufacturingRansomwareSarcomaRansom DemandedActor NamedMedium

Jacquet Weston Engineering

bd_9318e07f8ddf84d8 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Jan 20, 2025

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for Jacquet Weston Engineering

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Sarcoma 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: 2025-01-20

Source: Ransomware.live

Post text · scraped from the leak site

Jacquet Weston Engineering Jacquet Weston Engineering (JWE) was established in 1973 & is a Private Limited Company, we are market leaders in the Design and Manufacture of plant and ancillary equipment for the surface finishing industry. JWE is a family business with twenty highly skilled employees covering many disciplines, JWE have been based in a new purpose built 20,000 ft2 factory on a 11⁄4 acre site at Lambourn, Membury, near Newbury, Berkshire since 1997. This specialist facility incorporates Workshop, Stores and Offices. The new industry focused factory provides considerable advantages including the significant ability for JWE to pre-assemble and test dry run all plants for client inspection prior to delivery, and ongoing stock supply and management.Geo: United Kingdom - Leak size: 106 GB Archive - Contains: Files, SQL

Incident timeline — mostly unverified

? — ?

Breach window unknown

Jan 20, 2025

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

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.

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.

About this groupFirst seen 2024-07-09

sarcoma

According to ransomware.live, Sarcoma is a ransomware group that debuted in October 2024, immediately ranking among the top three most active groups globally and surpassing 116 documented victims by mid-2025, targeting mid-market companies across manufacturing, retail, healthcare, legal, and business services with roughly 50% of victims in the United States.

141 victims claimed globally141 tracked hereFull profile →