Your cybersecurity ally.

We develop cybersecurity solutions for companies, institutions and governments. Discover cyber defense made in France.



Detect weak points to better understand attacks. Analyze entry points to detect intrusion vectors.



To propose a personalized support solution to each actor in its cyber defense strategy.



Implement actions and training to prevent cyber threats and propose IT security solutions.


Our expertise

Devices security

Storage and data

Network security and management

Audits and trainings

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Our products

Secure Smartphones

Cassembly Cyber Defense specializes in providing secure smartphones. Get the best possible mobile protection.

Intelligent firewall by AI

Secure Computers & Tablets

Cyber Diagnostic

Audit & Website Protection

Audit your web infrastructure and protect yourself with C-Shield, secure your site and protect your reputation.

Secure Cloud

Discover C-Store, the new Cassembly Cyberdéfense store

A selection of antivirus, productivity and management software at negotiated discount prices.

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A French company at the heart of your needs

Because protecting IT devices is essential, but sometimes requires technical skills to implement, Cassembly supports companies with simple solutions and training to understand the issues.

Our teams answer you every day, in case of an attack or simple questions.

Smartphone sécurisé – secure smartphone – cyber-sécurité – carte sim sécurisée – cloud entreprise – tablette sécurisée – ordinateur sécurisé – box entreprise – modem sécurisé – routeur sécurisé – vpn entreprise – firewall – téléphone crypté – vpn – sécurité mobile – hébergement – pare-feu réseau – protection site internet – pare-feu dns – vpn français – anti-pishing – smartphones sécurisés – iphone sécurisé – android sécurisé – ordinateur sécurisé – audit sécurité – hébergement WordPress – Formation – e-learning – conférence – cvpn – cshield – ccloud – cdome – firewall entreprise – firewall AI – protection entreprise – cloud décentralisé – c-dome – c-vpn – c-shield – c-cloud – vpn journalistes – firewall hopital- sécurité informatique