Cybersecurity Architecture • Audit • Migration • Build / Run
F5 BIG-IP • Fortinet • WALLIX • Stormshield • Rubycat
Nantes, France
I design, audit, migrate and secure critical infrastructure and cybersecurity platforms through Samhan, an independent cybersecurity consultancy based near Nantes.
Main areas of work:
- F5 BIG-IP: AWAF / ASM, LTM, APM, DNS, BIG-IQ, iSeries, rSeries, VIPRION
- Fortinet: FortiGate, FortiWeb, FortiADC, FortiPAM, FortiAuthenticator, FortiDeceptor, FortiSASE, FortiManager, FortiAnalyzer
- WALLIX: Bastion, Session Manager, Access Manager, Trustelem
- Stormshield: firewall architecture, migration and audit
- Rubycat: architecture, integration, deployment and audit across the product range
- Reverse proxy / WAF / load balancing
- Cybersecurity architecture and technical audits
- Email & DNS audits: SPF, DKIM, DMARC, BIMI, CAA, MX and DNS consistency
My work covers architecture, migration, hardening, exposure and publication flows, privileged access, segmentation, logging, operational security and technical remediation.
- Architecture reviews and security audits
- WAF / reverse proxy audits and migrations
- FortiGate migrations and network security redesign
- PAM and privileged-access architecture
- F5 BIG-IP platform design, migration and hardening
- Email / DNS security posture reviews
- Build, run and operational troubleshooting on critical infrastructure
Publicly referenced CVEs:
- CVE-2026-84385
- CVE-2024-45328
- CVE-2024-45326
- Website: https://samhan.fr
- Email: thomas.sautier@samhan.fr
- Security contact: security@samhan.fr
- LinkedIn: https://www.linkedin.com/in/thomassautier/
For consulting, audit, migration or architecture work, contact me directly or use the Samhan website.