A startup company offering software on demand has hired a security consultant to provide expertise on data security. The company's clients are concerned about data confidentiality. The security…

A highly available environment sharing common resources such as storage or memory pools increases the risk of cross-tenant data exposure, subordinating confidentiality to availability.

Similarly, a shared highly available environment prioritizes uptime over isolation and does not provide the per-client separation required when confidentiality is the top priority.

Dedicated virtual hosts per client enforce hypervisor-level isolation between tenants, preventing cross-client data access and side-channel exposure. Even when the underlying hardware is shared, the hypervisor maintains separate memory, storage, and process spaces for each client, directly satisfying the confidentiality-first requirement.

This option involves shared hardware without the per-client dedicated virtual host isolation described in C, creating potential cross-tenant access paths that weaken confidentiality guarantees.