Barrett Lyon's $38 Million Bet on a Private Internet for AI Agents

The doxx.net founder, with four security exits, is launching an open beta for his 'Agentic Defined Networking' platform to give users and their AI direct control over connections.

About doxx.net

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You spin up a new AI agent to help with a task. It needs to access a private database, maybe ping a colleague’s device, or pull a file from your home server. The moment it leaves your laptop, its path becomes a series of handoffs across rented infrastructure you don’t control, through protocols that weren’t built for this. The agent’s autonomy is an illusion, bounded by the public internet’s architecture. This is the friction that doxx.net, a Miami-based startup, is trying to erase with a single, radical premise: what if every person and their AI agents had their own private, parallel internet?

That premise just landed a $38 million Series A led by Andreessen Horowitz, with participation from Animo Ventures and Focal.vc [Business Wire, October 2026]. The round, announced alongside the launch of an open beta on October 1, 2026, is a vote of confidence in founder Barrett Lyon’s vision for what the company calls Agentic Defined Networking (ADN) [Superpower Daily, October 2026]. It’s a bet that the next wave of computing,populated by autonomous agents,will demand a new kind of network, one built for privacy and direct control from the ground up.

The wedge: Control, not just encryption

Doxx.net isn’t selling another VPN or an encrypted messaging layer. Its wedge is architectural control. The platform promises to let individuals, enterprises, and AI agents create and control secure connections with built-in security filtering, requiring no personal information to start [Business Wire, October 2026]. The goal is to bypass what the company sees as a stagnant protocol layer, choked by carrier-grade NAT, identity-based restrictions, and server-mediated apps [BigGo Finance, retrieved 2026].

The product grew out of Darkflare, a hobby project by Lyon that involved tunneling TCP over Cloudflare to bypass public detection and censorship [Network World, October 2026]. That ethos,of creating a direct, user-controlled path,is now being productized. On a doxx.net network, users and their agents can theoretically browse, mesh, call, message, and transfer files in a private space, with the company providing the underlying hardware, its own IP space, and a DNS root [doxx.net, retrieved 2026]. The pricing is conspicuously simple: $1 per month to add a device or agent, $10 for a dedicated IP [doxx.net Pricing, retrieved 2026].

A founder who builds infrastructure to sell

The check from Andreessen Horowitz is as much a bet on the founder as the idea. Barrett Lyon is a serial entrepreneur with a specific, proven pattern: building large-scale global security infrastructure and selling it to strategic acquirers.

Founder Role Notable Background
Barrett Lyon Founder & CEO Founded Prolexic Technologies (acquired by Akamai), BitGravity (acquired by Tata Communications), XDN (acquired by Fortinet), and Defense.net (acquired by F5 Networks) [Business Wire, October 2026].
Nicolai Bezsonoff COO Former Vice President and General Manager of Security Solutions at Neustar [Refresh Miami, October 2026] [ICANNWiki, retrieved 2026].
Joel De La Garza Board Member (a16z) Andreessen Horowitz partner who joined the board as part of the Series A investment [Startup Researcher, October 2026].

Lyon is described as a former hacker and artist who pioneered DDoS defense [doxx.net About, retrieved 2026]. His career is a map of the internet’s security evolution, and doxx.net appears to be his thesis on its next necessary layer. The operational heft is bolstered by COO Nicolai Bezsonoff, who brings deep experience from the registry and security world at Neustar.

The market timing: Why agents change everything

The ‘why now’ is inextricably linked to the rise of AI agents. As Andreessen Horowitz framed it in its investment announcement, the platform is about handing network controls to AI [a16z, October 2026]. Current AI assistants operate within the constraints of the applications that host them. Truly autonomous agents, however, will need to act across the network,initiating calls, transferring files, accessing disparate resources. Doing that securely and privately on today’s internet is a patchwork of proxies and permissions.

Doxx.net is betting that users, especially enterprises, will not trust sensitive agentic workflows to that patchwork. The platform’s promise of “privacy-by-architecture” and zero-log infrastructure is a direct answer to that unease [doxx.net About, retrieved 2026]. It’s a preemptive move for a world where the network itself becomes a critical attack surface for AI-driven operations.

The open beta and the road ahead

The company moved from a closed beta that began in December 2025 to a public open beta in October 2026 [Superpower Daily, October 2026]. The $38 million war chest will fuel this rollout, though specific metrics on beta users or early customers have not been disclosed. The immediate challenge is one of proof: moving from a compelling technical vision to demonstrable, reliable utility for both human users and autonomous agents.

The software is offered under a dual license (MIT with a Commons Clause commercial license), suggesting a strategy that embraces developer adoption while reserving commercial rights [docs.doxx.net, retrieved 2026]. The next twelve months will be about validating the use cases. Can a team of developers reliably replace a corporate VPN with a doxx.net mesh? Will an individual find it easier to connect their personal AI agents to their home lab? The platform’s success hinges on answering these questions with a product that feels simpler and more secure than the status quo, not just more architecturally pure.

The counterfactual: Building a new internet is hard

The ambition is staggering, and the risks are commensurate. Building a new network is a profound exercise in persuasion, requiring users to adopt not just an app, but a new way of connecting. The most credible pressure points are not technical, but behavioral.

  • The inertia of the incumbent internet. Billions of users and millions of applications are built atop TCP/IP and existing cloud infrastructure. Displacing even a sliver of that traffic requires a value proposition so compelling it justifies changing fundamental habits.
  • The complexity of simplicity. The promise is a private network that ‘just works.’ Delivering on that for non-technical users, while managing the inherent complexity of peer-to-peer networking, global latency, and security filtering, is an immense operational challenge.
  • The enterprise sales motion. While the pricing suggests a bottom-up, individual user model, the large Series A implies enterprise ambitions. Convincing security-conscious CIOs to adopt a novel networking layer for their AI roadmaps is a different game than winning over developers.

The company’s most plausible answer to these risks lies in Lyon’s track record and the focused wedge of AI agents. They are not trying to rebuild the entire internet overnight. They are offering a controlled environment for the next generation of software,autonomous agents,to operate securely. If that generation takes off, the need for its native network could become acute.

The cultural question doxx.net is implicitly answering is one of agency in a networked age. We have grown accustomed to intermediaries managing our connections, our identities, our data flows. The platform proposes a return to direct ownership, not just of data, but of the digital paths themselves. It asks whether, in the era of AI, we want our agents to be tenants on someone else’s infrastructure, or citizens in a republic we control.

Sources

  1. [Business Wire, October 2026] doxx.net Raises $38 Million, Led by Andreessen Horowitz, to Launch Agentic Defined Networking | https://www.businesswire.com/news/home/20261001294246/en/doxx.net-Raises-$38-Million-Led-by-Andreessen-Horowitz-to-Launch-Agentic-Defined-Networking
  2. [Superpower Daily, October 2026] doxx.net Raises $38 Million and Opens Private Networks to People and AI Agents | https://superpowerdaily.com/posts/doxx-net-raises-38-million-and-opens-private-networks-to-people-and-ai-agents
  3. [Network World, October 2026] Startup doxx.net hands the network controls to AI | https://www.networkworld.com/article/4230194/startup-doxx-net-hands-the-network-controls-to-ai.html
  4. [a16z, October 2026] Investing in doxxnet | https://a16z.com/announcement/investing-in-doxxnet/
  5. [BigGo Finance, retrieved 2026] Why Online Privacy Is Harder Than You Think|a16z | https://finance.biggo.com/podcast/fe719256c1dc9a34
  6. [doxx.net Pricing, retrieved 2026] doxx.net Pricing Page | https://www.doxx.net/
  7. [doxx.net About, retrieved 2026] doxx.net About Page | https://www.doxx.net/about
  8. [Refresh Miami, October 2026] doxx.net raises $38M to put AI agents on a shorter leash | https://refreshmiami.com/news/doxx-net-raises-38m-to-put-ai-agents-on-a-shorter-leash/
  9. [ICANNWiki, retrieved 2026] Nicolai Bezsonoff profile | https://icannwiki.org/
  10. [Startup Researcher, October 2026] doxx.net Raises US$38 Million in Series A from Andreessen Horowitz | https://www.startupresearcher.com/news/doxx-net-raises-usd38-million-series-a-led-by-andreessen-horowitz
  11. [docs.doxx.net, retrieved 2026] doxx.net Documentation | https://docs.doxx.net/

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