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Rechtsanwaltskanzlei Dr. Bien

Claimed by Aurora · listed 4 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedOct 12, 2026
  2. Data leakeddate unknown

At a glance

Group
Aurora
Status
Data leaked
Country
Germany
Sector
Professional Services
Listed on leak site
Oct 12, 2026

About the victim

AI dossier — public-source company profile

Rechtsanwaltskanzlei Dr. Bien is a specialist insolvency law firm based in Hamm, North Rhine-Westphalia, Germany. The firm serves as an appointed insolvency administrator (Insolvenzverwalter) for 12 district courts (Amtsgerichte) across the Westphalia region, managing debtor cases and forced property administrations.

Industry
Legal Services – Insolvency & Restructuring Law
Address
Hamm, NRW, Germany
Employees
35

Attack summary

Severity: critical — Exfiltration of thousands of complete insolvency debtor financial records (PII, account details, asset information), sensitive employee data (salary, disability status), privileged attorney-client communications, and court-directed confidential files. Affects thousands of third-party debtors and creditors across multiple German court jurisdictions. Regulated legal/financial data at scale.

The aurora group claims to have exfiltrated the firm's complete digital infrastructure, including 2,387 insolvency case databases containing debtor financial records, 492+ forced administration files with property and tenant data, 80 GB of email archives, court communication backups, employee records, and tax/accounting files. Both encryption and data theft are implied.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • 2,387 WinSolvenz case databases (debtor financial dossiers, creditor lists, claim amounts, distribution plans, asset inventories)
  • 492+ forced administration (Zwangsverwaltung) case files (property addresses, tenant data, rent records, utilities, insurance)
  • 80 GB MailStore email archive (attorney-client communications, court correspondence, creditor negotiations)
  • 1.7 GB beA backup (electronic court communications via besonderes elektronisches Anwaltspostfach)
  • 35 employee records (contracts, salary, overtime, vacation, pension, disability status, termination agreements)
  • DATEV tax/accounting archives (income tax backups, insolvency accounting, third-party mandates)

What the group claims

[law] Rechtsanwaltskanzlei Dr. Bien — a specialist insolvency law firm in Hamm, NRW, appointed as insolvency administrator by 12 Amtsgerichte across Westfalen. The exposed material includes: 2,387 WinSolvenz case databases — each a Microsoft Access MDB containing the complete financial dossier of an insolvency debtor: creditor lists, claim amounts, distribution plans, asset inventories, court appointments, and bank account details. 492+ forced administration (Zwangsverwaltung) case files — property addresses, tenant data, rent records, utility accounts, insurance details, court-directed property management reports. <redacted> 80 GB MailStore email archive — the firm's complete email history in MailStoreContainer-v1 format: attorney-client communications, court correspondence, creditor negotiations, debtor disclosures. 1.7 GB beA backup (besonderes elektronisches Anwaltspostfach) — three MSSQL database backups containing every electronic communication between the firm and every German court. 35 employee records — 25 former + ~10 current staff: contracts, salary, overtime, vacation, pension, disability status, termination agreements. DATEV tax/accounting archives — 33 directories of income tax backups, insolvency accounting, third-party mandates.

The leak post

captured from the group's site
Rechtsanwaltskanzlei Dr. Bien — a specialist insolvency law firm in Hamm, NRW, appointed as insolvency administrator by 12 Amtsgerichte across Westfalen. The exposed material includes: 2,387 WinSolvenz case databases — each a Microsoft Access MDB containing the complete financial dossier of an insolvency debtor: creditor lists, claim amounts, distribution plans, asset inventories, court appointments, and bank account details. 492+ forced administration (Zwangsverwaltung) case files — property addresses, tenant data, rent records, utility accounts, insurance details, court-directed property management reports. <redacted> 80 GB MailStore email archive — the firm's complete email history in MailStoreContainer-v1 format: attorney-client communications, court correspondence, creditor negotiations, debtor disclosures. 1.7 GB beA backup (besonderes elektronisches Anwaltspostfach) — three MSSQL database backups containing every electronic communication between the firm and every German court. 35 employee records — 25 former + ~10 current staff: contracts, salary, overtime, vacation, pension, disability status, termination agreements. DATEV tax/accounting archives — 33 directories of income…

Sources

Source

Indexed 4 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 aurora

Aurora is a recently emerged ransomware group first observed in April 2026, operating with apparent financial motivations through targeted attacks across multiple sectors. Given its recent emergence, limited public documentation exists regarding the group's specific country of origin or affiliations with established ransomware operations, though its targeting patterns suggest a professional operation potentially operating as an independent entity rather than a known Ransomware-as-a-Service model. The group has demonstrated a preference for attacking business-critical sectors including business services, consumer services, manufacturing, healthcare, and financial services, with documented attacks spanning the United States, Canada, the Maldives, and Great Britain, though specific initial access vectors and technical methodologies remain undocumented by major threat intelligence firms. With only seven known victims documented since April 2026, Aurora represents a relatively small-scale operation compared to established ransomware families, though its cross-sector targeting approach and international victim scope indicate deliberate selection criteria rather than opportunistic attacks. The group remains active as of current reporting, though the limited victim count and recent emergence suggest either a highly selective targeting approach or a nascent operation still developing its operational capabilities. The group has been linked to 44 public disclosures across our corpus. First observed on a leak site on April 29, 2026; most recent post October 12, 2026. The operation is currently active.

Timeline of this disclosure

  • October 12, 2026Rechtsanwaltskanzlei Dr. Bien listed by aurora on the group's public leak site

Other recent disclosures by aurora

aurora has been linked to 44 public victims on Darkfield. A sample of the most recent:

See the full aurora dossier →

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, Rechtsanwaltskanzlei Dr. Bien is reported in Germany, a country with 393 ransomware disclosures in our corpus.

If your organisation is affected

A listing by aurora means Rechtsanwaltskanzlei Dr. Bien 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 aurora'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.