VDI (Virtual Desktop Infrastructure) provides users with virtual desktops running on central servers. Data stays in the data center while users access their desktop through a thin client or browser. In an ISMS, VDI offers security advantages: centralized patch management, controlled data access, and reduced risk from device loss. At the same time, VDI concentrates risk on the central infrastructure, which must be protected accordingly. VDI environment availability becomes a critical factor for business operations.