# Zero Networks Tests AI Attack in Anthropic Verification Program

> Zero Networks reports that a frontier AI model could not breach its microsegmented network after gaining admin access.

Oossa · 2026-10-21 · https://oossa.com/en/zero-networks-tests-ai-attack-in-anthropic-verification-program

Zero Networks, a Zero Trust security vendor, took part in Anthropic’s Cyber Verification Program. The test let a frontier AI model obtain administrator rights on a deliberately exposed machine. The model extracted credentials but was stopped by Zero Networks’ microsegmentation, which kept the attack contained to that single host. The company says the result shows its segmentation can limit AI‑driven threats.

## The facts

- Zero Networks joined Anthropic’s Cyber Verification Program and released results on Oct 21, 2026.
- The AI model could not move beyond the exposed machine after gaining admin access.

## Why it matters

For organizations using microsegmentation, the test suggests that such controls can confine AI‑powered attacks to a single point of compromise.

## Sources & references

1. [Zero Networks Joins Anthropic Cyber Verification Program to Test AI Powered Attacks Against Microsegmented Networks](http://www.businesswire.com/news/home/20261021765411/en/Zero-Networks-Joins-Anthropic-Cyber-Verification-Program-to-Test-AI-Powered-Attacks-Against-Microsegmented-Networks/?feedref=JjAwJuNHiystnCoBq_hl-WsGkFyUNMTSNrPsg57HLEqqcp-o_pnudlUwsb5apQ1S4gUE65BTfjH3-pSuqdv0gW3cb3F4oTIgUqCPafFkgu5AneicJQDNboWvodvG82E0) – Business Wire, 2026-10-21

Last updated: 2026-10-21