Hippius Confidential VMs Record 99.84% Success Rate in Eight-Day Security Test

Hippius (SN75) has recorded a 99.84% success rate in an eight-day security test of its confidential virtual machines (VMs). The independent evaluation, conducted by Marcus ‘Mogmachine’ Graichen across servers in France and the Netherlands, examined how securely and reliably the machines operate.

Hippius’s confidential VMs allow developers to run applications on independently operated servers without exposing their data to the server owners.

Using AMD’s security technology, the service protects sensitive information such as passwords, API keys, and application data from unauthorized access.

How Hippius Keeps Data Private

Hippius uses a technology called AMD SEV-SNP to protect its virtual machines. It encrypts the machine’s memory and storage so that only the authorized VM can access the information. The operating system is also checked for unauthorized changes before it runs.

Importantly, users can independently verify these protections instead of simply trusting Hippius. Each VM can provide a security report signed by AMD’s hardware, allowing users to confirm that their machine is genuine and running in a protected environment.

Eight Days of Independent Testing

Between September 30 and October 9, 2026, Mogmachine conducted independent tests that examined Hippius VMs running on four different servers across France and the Netherlands. The evaluation focused on security, uptime, storage, and recovery.

Of the 4,299 scheduled security checks, 4,292 succeeded, giving a 99.84% success rate. The seven unsuccessful checks were caused by temporary network issues, and the machines recovered automatically. No invalid security signatures, disk errors, or memory failures were recorded.

One VM also operated for eight consecutive days without restarting. During the evaluation, the publicly accessible machines received more than 220,000 attempted SSH logins, none of which succeeded.

Performance and Recovery

The tests also examined how quickly Hippius VMs operate and recover from interruptions. New machines became accessible in approximately 2.5 minutes, while reboots took less than a minute without losing stored files or settings.

Storage performance reached approximately 1.09 GB/s for writing data and 890 MB/s for reading.

A full 80 GB backup took around 14 minutes, while subsequent smaller backups completed in about 14 seconds. Restoring backups also worked as expected, returning files to their previous state.

Why This Matters for AI Agents

AI agents often handle sensitive information, including API keys, wallet credentials, and user data. Hippius protects this information through encryption, preventing server operators from accessing it and allowing agents to verify that they are running in a secure environment.

This makes confidential VMs useful for AI agents, private databases, and crypto applications. Hippius also offers a ready-made Hermes Agent application, making it easier for users to deploy AI agents without complicated setup.

Pricing and Availability

Hippius confidential VMs are currently in beta. A small machine with one virtual CPU, 4 GB of memory, and 40 GB of storage costs approximately $0.0438 per hour, or $32 per month. A public IPv4 address costs an additional $0.005 per hour, while backups cost $6 per terabyte per month.

Users can create and manage their machines through Hippius console, with larger configurations available for more demanding applications.

The tests show that Hippius can run secure, encrypted cloud servers on independently operated hardware without compromising performance. However, further testing will be needed to confirm how reliably the service performs over longer periods.