# Zero Networks Tests Microsegmentation Against AI Attacks

Zero Networks reported that during an Anthropic Cyber Verification Program evaluation, an autonomous AI model compromised an intentionally unsegmented machine, gained administrator access and credentials, but could not move laterally into systems protected by Zero Networks microsegmentation. The result is a cybersecurity capability signal for government security teams and contractors assessing defenses against AI-enabled attacks; the signals identify no government solicitation, contract award, contract value, or procurement contact.

- Security teams can assess whether network segmentation limits lateral movement after a host or credentials are compromised.
- Contractors offering zero-trust or network-security solutions may use the evaluation as a capability example, while clearly distinguishing it from a government award or endorsement.
- Procurement professionals evaluating these solutions can consider how microsegmentation addresses the specific risk demonstrated: containing an attacker after initial compromise.

**Jurisdictions:** federal
**Industries:** Information Technology
**Topics:** Cybersecurity
**Published:** October 22, 2026

### Vendors
- Zero Networks (Microsegmentation solution provider)
- Anthropic (Cyber Verification Program operator)

### Key Quotes
> Segmentation is one of the few controls that changes that math regardless of how the attacker thinks or how fast it moves, and this test is a concrete demonstration of why that matters.
> — Dr. Chase Cunningham, cybersecurity expert specializing in zero trust architecture

### Sources
- [Zero Networks Joins Anthropic Cyber Verification Program to Test AI Powered Attacks Against Microsegmented Networks](https://www.businesswire.com/news/home/20261021765411/en/Zero-Networks-Joins-Anthropic-Cyber-Verification-Program-to-Test-AI-Powered-Attacks-Against-Microsegmented-Networks) - Business Wire
- [Zero Networks joins Anthropic cyber verification program | Security News - SourceSecurity.com](https://www.sourcesecurity.com/amp/news/networks-joins-anthropic-cyber-verification-program-co-1749028090-ga.1792661991.html) - SourceSecurity.com