Data Breach Alert: Entreprise Menuiserie Bâtiment (ETMB)
On December 11, 2025, it was discovered that Entreprise Menuiserie Bâtiment (ETMB), a prominent construction company based in France, suffered a significant data breach. This breach has raised alarms regarding the security of sensitive information, potentially impacting clients, employees, and business operations. In this blog post, we will provide an overview of ETMB, detail the breach itself, and outline the next steps for affected parties.
About Entreprise Menuiserie Bâtiment
Entreprise Menuiserie Bâtiment (ETMB) is a well-established construction company located in France, specializing in carpentry, interior fittings, public works, and innovative construction solutions. The company is known for its work on a variety of projects, including offices, commercial centers, and cultural-educational venues. With a commitment to quality and safety, ETMB has built a strong reputation in the construction industry.
What Happened
The data breach, attributed to the threat actor known as Qilin, has raised serious concerns about the security measures in place at ETMB. While the exact size of the leak remains unknown, the implications of the breach are significant. Sensitive information that may have been compromised could include personal data of clients and employees, project details, and proprietary business information. The breach’s discovery on December 11, 2025, has prompted immediate action to assess the damage and secure the affected systems.
Next Steps
If you are an affected party, it is crucial to understand your options in light of this data breach. We at Srourian Law Firm (SLF) are here to assist you in navigating this situation. We recommend reaching out to us to discuss potential legal strategies, protective measures, and any necessary steps you may need to take to safeguard your information and rights. Your security and peace of mind are our top priorities.
LINKS:

Srourian Law Firm is investigating a potential class action lawsuit against Entreprise Menuiserie Bâtiment for a recent data breach.
If you received a NOTICE OF DATA BREACH letter from Entreprise Menuiserie Bâtiment, complete the form below so we can discuss your legal options.
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