Was irmler.rechtsanwalte hit by ransomware?

irmler.rechtsanwalte was listed by the beast ransomware operation (Germany), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the beast ransomware group?

beast is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the irmler.rechtsanwalte breach?

beast published data attributed to irmler.rechtsanwalte. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Irmler Rechtsanwälte

listed as irmler.rechtsanwalte · Claimed by Beast · listed 3 months ago

Age

since listed · data leaked

Status timeline

ListedMay 31, 2026
Data leakeddate unknown

At a glance

Group: Beast
Status: Data leaked
Country: Germany
Sector: Legal Services
Listed on leak site: May 31, 2026

About the victim

AI dossier — public-source company profile

Irmler Rechtsanwälte is a German law firm specializing in architectural law, public procurement law, and private/public construction law. The firm operates offices in Schwerin (Mecklenburg-Vorpommern) and Lübeck (Schleswig-Holstein), and provides nationwide support for procurement procedures and architectural competitions.

Industry: Legal Services - Architectural & Construction Law
Address: Schwerin and Lübeck, Germany

Attack summary

Severity: high — Confirmed data exfiltration from a law firm handling sensitive procurement, construction, and client matters. Legal privileged communications and confidential client information are at stake, affecting both individual clients and public procurement processes.

The BEAST group claims to have breached Irmler Rechtsanwälte and published exfiltrated data. The specific data categories at stake are not detailed in the available post excerpt, though client matters, procurement records, and construction/architectural case files are likely implicated given the firm's practice areas.

high

Data the group says was taken

AI dossier — extracted from the leak post

Client files
Procurement documents
Architectural competition records
Legal correspondence

What the group claims

irmler.rechtsanwalte specializes exclusively in architectural law, public procurement law and private and public construction law. Represented in Mecklenburg-Vorpommern and in Schleswig-Holstein at locations in Schwerin and Lubeck. Active nationwide in support of procurement procedures for architect/planning services and architectural competitions.

The leak post

captured from the group's site

irmler.rechtsanwalte specializes exclusively in architectural law, public procurement law and private and public construction law.
We are represented in Mecklenburg-Vorpommern and in Schleswig-Holstein at the locations in Schwerin and Lubeck.
In the support of procurement procedures, in particular for the award of architect/planning services and architectural competitions, irmler.rechtsanwalte is active nationwide.
P U B L I S H E D

Screenshot of the leak post

Leak screenshot for irmler.rechtsanwalte

Sources

Leak posthttp://beast6azu4f7fxjakiayhnssybibsgjnmy77a6duufqw5afjzfjhzuqd.onion/card/irmler_org

Source

Indexed 3 months 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 beast

The Beast ransomware group is a relatively new threat actor that emerged in July 2025, operating with apparent financial motivations through their ransomware campaigns. With limited public documentation available from major security agencies, the group has demonstrated activity primarily targeting victims across the United States, United Kingdom, Brazil, South Korea, and Argentina, accumulating approximately 65 known victims since their emergence. Their targeting pattern shows a focus on healthcare organizations, manufacturing companies, educational institutions, and construction firms, suggesting an opportunistic approach rather than highly specialized sector expertise. The group's recent emergence means there is insufficient public intelligence from CISA, FBI, Mandiant, or other established security researchers regarding their specific attack methodologies, initial access vectors, or technical capabilities. Given the timeline of their first observation in mid-2025, Beast represents an active and emerging threat with their current operational status remaining unclear due to limited threat intelligence reporting from authoritative sources. The group has been linked to 106 public disclosures across our corpus. First observed on a leak site on July 29, 2025; most recent post August 25, 2026. The operation is currently active.

Timeline of this disclosure

May 31, 2026irmler.rechtsanwalte listed by beaston the group's public leak site

Other recent disclosures by beast

beast has been linked to 106 public victims on Darkfield. A sample of the most recent:

See the full beast dossier →

Sector and geography

This disclosure adds to ransomware activity in the Legal Services sector. Geographically, irmler.rechtsanwalte is reported in Germany, a country with 926 ransomware disclosures in our corpus.

If your organisation is affected

A listing by beast means irmler.rechtsanwalte 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 beast'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.