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GLOBALMalwareManufacturingManufacturingRansomwareThegentlemenRansom DemandedActor NamedMedium

Grundbaulabor Trier

bd_7fb89d2fe002ca89 · schema v1 · pii pii-v2

Severity

Medium

Discovered

—

Filed

Oct 26, 2026

To disclose

—

Affected

Not disclosed

Confidence

50%
Full breach record for Grundbaulabor Trier →

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: 2026-10-31

Source: Ransomware.live

Post text · scraped from the leak site

gbl-trier.de Grundbaulabor Trier is a German geotechnical engineering firm founded in 1960 in Trier by Dr. Paul Lehmann, now run by the third generation of the Lehmann family with 23 qualified engineers. It has completed over 20,000 projects in soil investigation, foundation design, construction supervision, environmental contamination assessment and hydrogeology across Rhineland-Palatinate, Saarland and Luxembourg. The firm operates its own soil mechanics laboratory offering fast and reliable sample processing with modern testing equipment. Led by Managing Directors Eric Lehmann and Bernd Mertes, it is one of the leading geotechnical bureaus in the Trier-Saarbrücken-Luxembourg region.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Oct 26, 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

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 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.

1,059 tracked hereFull profile →