Doxx.net announced a $38 million Series A, led by Andreessen Horowitz, to build its ADN platform that curtails internet connectivity for AI agents and blocks harmful sites.

Doxx.net, a Miami‑based AI‑security startup, announced a $38 million Series A round led by Andreessen Horowitz to develop its AI‑Driven Network (ADN) platform, which limits internet connectivity for autonomous AI agents and blocks access to malicious sites.

Funding round and investors

The financing round also included participation from Andreessen Horowitz, with additional backing from several undisclosed venture firms. The capital will be used to accelerate product development, expand the engineering team, and scale the platform for enterprise customers.

Why AI agents need web‑access restrictions

As large language models become increasingly autonomous, they can browse the web, retrieve data, and execute actions without human oversight. This capability raises concerns about accidental exposure to phishing sites, illegal content, or data‑exfiltration attempts. Doxx.net’s ADN platform creates a controlled sandbox that permits only vetted domains and services, reducing the attack surface for AI‑driven applications.

Key features of the ADN platform

  • Domain whitelisting and blacklisting tailored to each AI workload
  • Real‑time traffic monitoring with AI‑powered threat detection
  • Policy‑driven throttling to limit bandwidth and request rates
  • Audit logs and compliance reporting for regulatory standards

The platform integrates with popular AI frameworks and can be deployed on‑premises or in public clouds, giving organizations flexibility while maintaining strict security controls.

Market impact and outlook

Analysts see a growing demand for tools that govern AI agents’ internet behavior, especially in sectors such as finance, healthcare, and government. By offering a turnkey solution, Doxx.net aims to become a foundational layer for responsible AI deployment.

We believe safe AI requires not just model robustness but also disciplined network access.

The funding round underscores investor confidence that securing AI agents will be a critical component of the broader AI safety ecosystem.

SecurityWeek coverage of Doxx.net’s $38 million raise