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KNOBEL Bau-Gruppe

listed as knobel-bau.de · Claimed by Safepay · listed 9 days ago

8d
Age
since listed · data leaked

Status timeline

  1. ListedJul 6, 2026
  2. Data leakeddate unknown

At a glance

Group
Safepay
Status
Data leaked
Country
Germany
Sector
Construction
Listed on leak site
Jul 6, 2026

About the victim

AI dossier — public-source company profile

KNOBEL Bau-Gruppe is a family-owned construction company founded in 1947 based in Hartheim am Rhein, Germany. Operating for over 75 years, the company specializes in civil engineering, road construction, pipeline work, earthworks, paving, demolition, and recycling. With approximately 140 employees, they operate integrated operations including gravel extraction, asphalt production, and material recycling across the tri-border region (Germany-France-Switzerland).

Industry
Civil Engineering & Construction (Heavy Infrastructure)
Address
Freiburger Straße 33, 79258 Hartheim am Rhein, Germany
Employees
140
Founded
1947

Attack summary

Severity: low — No confirmed exfiltration details, data categories, or proof files are described in the accessible leak post. The disclosure appears to be a listing/announcement only without substantive evidence of data compromise or operational disruption.

The SafePay ransomware group claims to have attacked KNOBEL Bau-Gruppe. The leak post provides minimal detail on attack scope; no specific data categories or operational impact are disclosed in the available excerpt.

low

Data the group says was taken

AI dossier — extracted from the leak post
  • business records
  • employee information
  • operational/project data

What the group claims

Founded in 1947, the company has grown from a small sand and gravel business established after the Second World War …

Sources

Source

Indexed 9 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About safepay

The Safepay ransomware group is a newly emerged threat actor first observed in November 2024, demonstrating rapid operational scale with 444 documented victims in a short timeframe, indicating financially motivated cybercriminal activity. Due to the group's recent emergence, publicly documented information about their country of origin, affiliations, and operational model remains limited among established threat intelligence sources. Given the recency of their appearance and lack of detailed technical analysis from major security firms, their specific attack methodologies, initial access vectors, and encryption techniques have not been comprehensively documented in public threat intelligence reporting. The group has demonstrated a broad targeting approach across multiple sectors including manufacturing, technology, education, and healthcare, with primary focus on victims in the United States, Germany, Canada, the United Kingdom, and Australia, though no specific high-profile campaigns or notable incidents have been publicly attributed to them by major security vendors or law enforcement agencies. As of the latest available intelligence, Safepay appears to remain active, though comprehensive threat profiling is limited due to the group's recent emergence and the current lack of detailed technical analysis from established cybersecurity research organizations. The group has been linked to 612 public disclosures across our corpus. First observed on a leak site on November 19, 2024; most recent post July 13, 2026. The operation is currently active.

Timeline of this disclosure

  • July 6, 2026knobel-bau.de listed by safepayon the group's public leak site

Other recent disclosures by safepay

safepay has been linked to 612 public victims on Darkfield. A sample of the most recent:

See the full safepay dossier →

Sector and geography

This disclosure adds to ransomware activity in the Construction sector, which has 988 disclosures indexed across all operators we track. Geographically, knobel-bau.de is reported in Germany, a country with 379 ransomware disclosures in our corpus.

If your organisation is affected

A listing by safepay means knobel-bau.de appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CERT-Bund (Germany), as required for your jurisdiction.
  • Monitor for the data appearing on safepay's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.