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Réunion des Musées Nationaux-Grand Palais

listed as rmn.fr · Claimed by Braincipher · listed 2 years ago

22m
Age
since listed · data leaked

Status timeline

  1. ListedAug 29, 2024
  2. Data leakeddate unknown

At a glance

Group
Braincipher
Status
Data leaked
Country
France
Sector
Government
Listed on leak site
Aug 29, 2024

About the victim

AI dossier — public-source company profile

Réunion des Musées Nationaux-Grand Palais (RMN-GP) is a French state-owned cultural institution responsible for managing and promoting France's national museums and monuments. It organizes major exhibitions, publishes art books, and operates museum retail and food services, playing a central role in preserving and presenting French cultural heritage internationally.

Industry
Cultural Heritage & Museums

Attack summary

Severity: medium — Data has been published by the ransomware group (disclosed_status: data_published), indicating confirmed exfiltration. However, no specific sensitive data types or proof files are detailed in the leak post, and no operational disruption is claimed. The victim is a major cultural institution with potential public/administrative data exposure.

Braincipher claims to have compromised RMN-GP and published data as part of a ransomware attack. The group's post does not specify what data was exfiltrated or confirm encryption activity.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • institutional records
  • organizational data

What the group claims

Réunion des Musées Nationaux-Grand Palais (RMN-GP) is a French cultural institution dedicated to managing and promoting national museums and monuments. It organizes exhibitions, publishes art books, and oversees museum shops and cafes. RMN-GP plays a crucial role in preserving and showcasing France's cultural heritage to a global audience.

Sources

Source

Indexed 2 years 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 Braincipher

Braincipher is a recently emerged ransomware group that was first observed in July 2024, operating with apparent financial motivations and targeting organizations primarily across North America and Europe. The group's origin and potential affiliations remain largely undocumented by major threat intelligence organizations, though their targeting patterns suggest a broad opportunistic approach rather than nation-state backing, likely operating as an independent entity rather than through established ransomware-as-a-service infrastructure. Their attack methodology and specific technical capabilities have not been extensively documented by CISA, FBI, or major security research firms, though their victim distribution across 44 confirmed targets spanning business services, manufacturing, technology, and healthcare sectors indicates a generalist approach to target selection rather than sector-specific expertise. No major high-profile campaigns or significant law enforcement actions have been publicly documented against this group by reputable sources, suggesting either a relatively low-impact operational scale or insufficient intelligence collection on their activities. As of current reporting, the group's operational status remains unclear due to limited public documentation from established threat intelligence sources. The group has been linked to 69 public disclosures across our corpus. First observed on a leak site on July 1, 2024; most recent post July 9, 2026. The operation is currently active.

Also tracked as: brain cipher.

Timeline of this disclosure

  • August 29, 2024rmn.fr listed by Braincipheron the group's public leak site

Other recent disclosures by Braincipher

Braincipher has been linked to 69 public victims on Darkfield. A sample of the most recent:

See the full Braincipher dossier →

Sector and geography

This disclosure adds to ransomware activity in the Government sector, which has 685 disclosures indexed across all operators we track. Geographically, rmn.fr is reported in France, a country with 612 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Braincipher means rmn.fr 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-FR (France), as required for your jurisdiction.
  • Monitor for the data appearing on Braincipher'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.