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high severity September 26, 2024 · 3 min read Unverified claim — what this is

cdc-biodiversite.fr Listed by blackout Ransomware Group

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

CDC Biodiversité is a French environmental protection company making tens...

— from Blackout’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.
cdc-biodiversite.fr Listed by blackout Ransomware Group

On September 26, 2024, French environmental organization CDC Biodiversité appeared on the leak site of the Blackout ransomware group. The listing states that internal files were exfiltrated during a ransomware attack. The company, which works on biodiversity protection and ecological transition projects across France, has not yet published a formal breach notification detailing the volume or exact nature of the data taken.

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Primary Disclosure Details

The Blackout leak site entry states that CDC Biodiversité suffered a ransomware intrusion and that attackers successfully exfiltrated internal files. No specific record count is provided, and the posting does not list sample data or describe the types of documents involved beyond the generic label “internal files.” The disclosure indicates the data was obtained in the course of a ransomware deployment, a common pattern in which operators first steal information before encrypting systems or demanding payment. As of the publication date, the leak site does not show any deadline for payment or public auction of the material, though such timers frequently appear later in the group’s playbook.

Why This Matters for You and Your Family

When an organization like CDC Biodiversité is breached, the people whose information resides in its systems face direct exposure. Even though the exact data types remain undisclosed, environmental and public-sector entities routinely hold names, contact details, identification numbers, financial records, and correspondence tied to grants, contracts, or research participation. If your information is among the stolen material, it can be used for identity theft, phishing campaigns, or sold quietly on underground forums. Your family members listed on shared accounts or joint projects are equally at risk. The uncertainty itself creates anxiety: without clear details from the victim, you cannot know whether your records are included.

Doxxing and Identity-Chain Risks

Exfiltrated internal files often contain more than isolated records. They can include spreadsheets that link email addresses to physical addresses, phone numbers to project roles, or partner lists that reveal family relationships. Attackers and subsequent buyers chain these fragments together with data from other breaches to build detailed profiles. A single leaked work email can lead to personal accounts, especially when the same password has been reused. Credential leaks like this one cascade into account takeovers, particularly for gaming platforms where children’s accounts are tied to family email addresses. Once a gaming handle is compromised, it can expose chat logs, location data, and further personal details that expand the doxxing chain.

Blackout Ransomware Group Track Record

Public reporting attributes Blackout as a ransomware operation that emerged in early 2024. The group follows a double-extortion model: it encrypts victim systems and simultaneously exfiltrates data to pressure payment. Notable prior victims include organizations across Europe and North America, many in the healthcare, education, and public-service sectors. Typical initial access involves phishing or exploitation of remote desktop services, followed by lateral movement to locate valuable files. After exfiltration, Blackout posts victim names on its leak site and gradually escalates pressure by releasing proof files or threatening full data dumps. The group’s exact size and leadership remain unclear, but its rapid appearance and focus on mid-sized entities suggest it is either a new entrant or a rebrand seeking to establish reputation in the ransomware ecosystem.

What to do

  • Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure surfaces in hours rather than months.
  • Rotate any password you used at CDC Biodiversité or related partner portals anywhere it has been reused, and switch to 2FA through an authenticator app instead of SMS.
  • Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts which often chain back to the same family address or email.
  • Let remediation specialists manage takedown requests for any exposed personal documents or broker listings that surface from this incident.

The appearance of CDC Biodiversité on the Blackout leak site is a reminder that environmental and public-interest organizations hold data that can affect ordinary families for years after an intrusion. Staying ahead requires more than waiting for official notices. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and over 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, with household coverage that includes children’s gaming accounts vulnerable to credential-based takeovers. Start your DoxxScan trial today to gain clarity and control over what this claimed breach may mean for you.

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.

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Report details & sourcing

Severity High
Disclosed September 26, 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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