Everything we know about protecting the data you cannot lose.

Plain guides to Quantum-Secure® authentication, private networking, ParticleMesh™, protected data, redundancy, recovery and crown-jewel data. No jargon, no scare tactics.

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The core ideas behind Citadel's protection beyond capacity, in the order they usually make sense.

What is crown-jewel data?

Define it, inventory it, protect it.

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What is a secure data vault?

Why a vault is not simply a bigger drive.

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How Citadel works

Drag, drop, store, retrieve.

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Security architecture

Exactly what we claim, and what we do not.

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HP Z Compute for secure private cloud storage with Secured2 Citadel — HP Z Compute for secure private cloud storage — Secured2 Citadel.

Local and sovereign storage, powered by HP Z.

Citadel is built to run where your data must stay — inside your own walls, under your own custody. Paired with HP Z workstations, Citadel delivers secure end-to-end storage and archival that never requires your crown jewels to leave the building. Boards, legal teams, and regulated organisations keep full ownership of their archive while still receiving vault-grade protection.

HP Z platforms carry hardware-enforced firmware security: firmware is verified at every boot and self-heals from tampering, with below-the-operating-system protections baked into the silicon rather than bolted on afterward. Combined with Citadel's keyless, physics-based Quantum-Secure® protection, the entire path — device, firmware, operating system, network, and vault — is defended end to end.

Your data stays in your custody — local-first and sovereign by design.
HP Z firmware protection: verified at boot, self-healing, resistant to tampering.
End-to-end archival — from desktop to vault, protected by physics, not keys.
Deploy in the cloud, hybrid, or fully local with no external dependency.