Saint-Claude Town Hall Falls Victim to Qilin Ransomware

🏢 About Saint-Claude

Saint-Claude is a commune located in the Jura department, Burgundy-Franche-Comté region of France. Known as the “city on a volcano,” Saint-Claude is home to around 8,500 residents and attracts hundreds of thousands of tourists every year.

It serves as the administrative center of its arrondissement and canton, housing key local government offices. The municipal administration manages local services, urban development, and resident data, making it a sensitive target for ransomware operators.

⚠ Disclaimer

This report includes actual screenshots and/or text that may include unredacted personally identifiable information (PII) obtained from publicly available sources. Information is provided solely for cybersecurity awareness and threat intelligence purposes.

📌 Overview

On October 6, 2025, the Qilin ransomware group listed Saint-Claude Town Hall (ville-saintclaude.fr) on its leak site.
The attackers claim to have compromised sensitive records, including personal data of residents and tourists, financial documents, and architectural building plans.

📊 Key Details