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Ransomware victim disclosure

All victims

Kreishandwerkerschaft Borken

Claimed by Rhysida · listed 3 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedSep 19, 2026
  2. Data leakeddate unknown

At a glance

Group
Rhysida
Status
Data leaked
Country
Germany
Listed on leak site
Sep 19, 2026

About the victim

AI dossier — public-source company profile

Kreishandwerkerschaft Borken is a chamber of trades (Handwerkskammer) serving the Borken district in North Rhine-Westphalia, Germany. It represents over 1,000 member craft businesses and provides apprenticeship placement, legal counsel, debt collection, and continuing education services to member firms across various trades.

Industry
Trade Association & Vocational Services
Address
Hindenburgallee 17, 48683 Ahaus, Germany

Attack summary

Severity: medium — Confirmed operational disruption to a non-critical trade association serving regional craft businesses. No exfiltration of sensitive personal data or regulated information is publicly claimed. The leak post itself contains minimal detail; severity is based on encryption-only impact with no proof files published.

Rhysida claims to have compromised the organization's IT systems. The public website confirms operational disruption, stating the EDV system was hacked and computers were expected to be non-functional until 24 September 2026. No data exfiltration is claimed in the leak post excerpt, and no proof files are advertised.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • Member business directory
  • Apprenticeship records
  • Internal communications
  • Administrative systems data

What the group claims

Kreishandwerkerschaft Borken

Sources

Source

Indexed 3 hours 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 Rhysida

Rhysida is a ransomware group that emerged in June 2023, operating with primarily financial motivations through targeted attacks against critical infrastructure and public sector organizations. The group's origin and potential state affiliations remain unclear, though they operate independently rather than as a traditional Ransomware-as-a-Service model, with limited public documentation regarding connections to other cybercriminal organizations. Rhysida employs double extortion tactics, typically gaining initial access through compromised VPN credentials and exploiting vulnerable public-facing applications before deploying their ransomware payload and exfiltrating sensitive data prior to encryption. The group has demonstrated a particular focus on healthcare and educational institutions, with notable attacks documented by CISA and FBI advisories highlighting their targeting of hospitals and school districts across multiple countries, resulting in significant operational disruptions to critical services. As of late 2024, Rhysida remains an active threat with continued operations targeting organizations primarily in the United States, Canada, and other Western nations, maintaining their focus on high-value sectors where operational disruption can maximize ransom payment likelihood. The group has been linked to 335 public disclosures across our corpus. First observed on a leak site on June 5, 2023; most recent post September 19, 2026. The operation is currently active.

Timeline of this disclosure

  • September 19, 2026Kreishandwerkerschaft Borken listed by Rhysida on the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Professional Services sector, which has 17 disclosures indexed across all operators we track. Geographically, Kreishandwerkerschaft Borken is reported in Germany, a country with 393 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Rhysida means Kreishandwerkerschaft Borken 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 Rhysida'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.