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high severity April 17, 2024 · 3 min read Unverified claim — what this is

jean-nouvel Listed by qilin Ransomware Group

If you are a customer of jean-nouvel, here’s what is being claimed, and what it would mean for you.

AJN est l’un des plus grands cabinets d’architectes en France, avec plus de 40 projets en cours dans 13 pays et une équipe multiculturelle de plusde 140 professionnels. Le projet de l'équipe Jean Nouvel AJN, Jean-Marie Duthilleul AREP e ...

— from Qilin’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
jean-nouvel Listed by qilin Ransomware Group

On April 17, 2024, the French architecture firm AJN (Ateliers Jean Nouvel) appeared on the leak site operated by the qilin ransomware group. The listing states that internal files were exfiltrated during a ransomware attack. The disclosure does not specify the number of records affected or list exact data types beyond “internal files.” Anyone whose personal or professional information passed through AJN’s systems in the past several years may now be exposed.

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Details in the Leak-Site Listing

The qilin leak site entry, first observed on April 17, 2024, claims that AJN’s internal documents were stolen and are now available for download by anyone who visits the onion address. The listing does not quantify the volume of data or name specific categories such as client contracts, employee records, or financial spreadsheets. It simply states that files were exfiltrated following a ransomware deployment. Public mirrors of the site, including ransomware.live, state the posting date and the victim’s identity as the well-known Paris-based studio responsible for major cultural and urban projects across 13 countries.

April 17, 2024 marks the public confirmation of the incident. The disclosure indicates the attacker obtained the data through a ransomware operation, though the exact initial-access vector remains unknown from the primary listing.

Why This Matters for You and Your Family

When an architecture firm’s internal files surface on a ransomware leak site, the exposure often reaches beyond corporate walls. Clients, contractors, employees, and their families can find addresses, identification numbers, contracts, and correspondence suddenly available to identity thieves, stalkers, or opportunistic criminals. Even if your name appears only in a single project folder, that document can link your home address, phone number, or email to other details already circulating online. For families, a single leaked record can serve as the starting point for harassment, financial fraud, or targeted scams months or years later.

The Doxxing and Identity-Chain Risk

Leaked internal files frequently contain spreadsheets that map names to addresses, phone numbers, and project contacts. Attackers and subsequent data brokers can chain this information with usernames, children’s school details, or gaming handles found in the same documents. The result is a persistent digital profile that follows you across platforms. Credential leaks of this nature also cascade into account takeovers; a reused password taken from an AJN-related file can open email, banking, or social-media accounts. Gaming accounts belonging to children are especially vulnerable because they often share the same household email or phone number listed in family-related project records.

Qilin’s Publicly Known Track Record

Public reporting attributes the first significant activity by qilin to late 2022. The group has since claimed responsibility for attacks on organizations in healthcare, manufacturing, education, and professional services. Notable prior victims include mid-sized European firms whose data appeared on the same leak site now listing AJN. Qilin typically gains initial access through phishing, remote-desktop compromise, or exploited vulnerabilities, exfiltrates documents, deploys its ransomware payload, and then posts samples on its onion site with a countdown for extortion. The group’s playbook emphasizes volume over negotiation in many cases, publishing large batches of stolen files when victims do not pay.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity drawn from this and earlier exposures.
  • Rotate any password used at AJN or on related project portals anywhere it has been reused, and switch to 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next leak that touches your household is flagged within hours.
  • Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts sharing the same address or contact details.
  • Let remediation specialists handle data-broker takedown requests and follow-up notices on your behalf while you focus on securing day-to-day accounts.

The AJN breach is a reminder that professional-service records can expose ordinary families long after the initial attack. Acting quickly on credential hygiene and identity mapping limits how far those chains can stretch. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts at risk from cascading leaks like this one.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Check your exposure
jean-nouvel is one listing. Your email is probably in others.
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Report details & sourcing

Severity High
Disclosed April 17, 2024
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
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