DisclosureLens
GLOBALMalwareEnergy & UtilitiesUtilitiesRansomwareSafepayRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

Stadtwerke Clausthal-Zellerfeld

bd_0724aed068ec6b6e · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Dec 16, 2025

To disclose

—

Affected

Not disclosed

Linked

2 records

Confidence

50%
Full breach record for Stadtwerke Clausthal-Zellerfeld →

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Safepay 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: EnergyDiscovered: 2025-12-16

Source: Ransomware.live

Post text · scraped from the leak site

Stadtwerke Clausthal-Zellerfeld is a municipal utility company (Stadtwerk) serving the town of Clausthal-Zellerfeld in Lower Saxony, Germany. As a publicly ...

Incident timeline — mostly unverified

? — ?

Breach window unknown

Dec 16, 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

This leak-site claim is one of 2 records about the same incident.View merged incident

Linked disclosures

Why this link?

Press reports (1)

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 2023-11-10

safepay

According to ransomware.live, SafePay emerged in September 2024 as a rapidly growing ransomware operation that explicitly disavows the RaaS model and manages all operations internally, claiming over 300 victims worldwide by mid-2025 with a high-profile early attack against UK telematics firm Microlise stealing 1.2 TB of data.

620 tracked hereFull profile →