Qilin Strikes Mairie de Saint-Claude with Ransomware

Ransomware

Summary

On October 6, 2025, the ransomware group Qilin publicly claimed responsibility for an attack targeting Mairie de Saint-Claude (ville-saintclaude.fr), a French government entity. According to the threat actor’s post, they intend to release sensitive data unless negotiations are initiated.


Incident Report

FieldDetails
TargetMairie de Saint-Claude
Domainville-saintclaude.fr
CountryFrance
Attacking GroupQilin
Date ReportedOctober 6, 2025
Threat Actor Statement“The full leak will be published soon, unless a company representative contacts us via the channels provided.”

Mairie de Saint-Claude, located in the Jura department of France, is facing a significant cybersecurity threat. The Qilin group has been known for its targeted ransomware attacks and this incident underscores the importance of vigilance and preparedness in protecting sensitive governmental data.

Organizations must adopt proactive measures to combat such threats, including regular dark web monitoring. By using tools like the domain breach scan, companies can stay informed about potential data leaks and take necessary actions to safeguard their information.

Recommendations

  • Monitor your domains and email addresses for exposure using reputable threat intelligence tools.
  • Conduct a full compromise assessment and incident response drill internally.
  • Verify backups and ensure they are offline and ransomware-resistant.
  • Educate staff on phishing, social engineering, and lateral movement techniques used by groups like Qilin.
  • Engage with cyber forensics and legal counsel before initiating contact with threat actors.

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Disclaimer

The MSPDarkIntel team does not engage in the exfiltration, downloading, taking, hosting, viewing, reposting, or disclosure of any stolen information.
All breach data reported here is sourced from publicly available threat intelligence feeds for awareness and early-warning purposes only.
Our goal is to inform organizations of emerging threats so they can take timely defensive action.

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