Case Study: Gecina strengthens cyber resilience and protects high-value applications with Illumio Core

Gecina strengthens cyber resilience with Illumio Zero Trust Segmentation

Gecina, Europe’s leading office real estate company with an asset portfolio of about €18.5 billion and roughly 100,000 occupants, needed to strengthen its cyber defenses as threats increased. Having tried and failed to achieve true microsegmentation with a hypervisor-based solution, the company lacked visibility into east‑west traffic and risked lateral movement between servers, so it sought a simple, easy-to-manage approach to protect high‑value applications.

Gecina deployed Illumio Core and the Illumio VENs, gaining real‑time flow visibility and granular microsegmentation without intrusive kernel changes. The fast deployment and professional services support enabled the team to identify and block unnecessary traffic, reduce downtime risk, and isolate compromised systems; Gecina is moving to enforce segmentation across its ~300 servers, strengthening resilience and simplifying security management.

Gecina

Joël Robin

Director of IT Infrastructure and Production