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Why One Internet Pioneer Thinks the Original Model Broke

a16z’s Joel de la Garza sits down with DoxxNet founder Barrett Lyon to discuss what it would take to rebuild the internet around privacy, direct communication, and less dependence on centralized intermediaries. Barrett explains why he thinks traditional VPNs only solve part of the problem and how DoxxNet is building a parallel mesh network where users can communicate peer-to-peer, transfer large files, make calls, and message without routing those interactions through a central application server. He also explains why the company owns its infrastructure and runs its AI systems locally rather than relying on third-party inference providers. doxxnet_assembly They also get into the growing amount of tracking embedded across the internet, what happens when that data can be analyzed by increasingly capable AI, and why Barrett believes the underlying protocols of the internet are due for another wave of experimentation. Along the way, he shares lessons from decades of building internet infrastructure, from fighting early DDoS attacks to mapping the internet and building global networks. Timestamps: 00:00 - Intro 00:51 - Barrett's engine failure over Oakland 07:08 - What Doxxnet actually is 10:11 - When censorship comes home to the US 12:59 - Why VPNs don't cut it 17:56 - The FBI's trojan messaging app 22:05 - Running a network with AI, no sysadmin 25:03 - The data center misinformation campaign 28:40 - Ad trackers know you better than your spouse 32:35 - Prolexic, Russian hackers, and MoMA Resources: Learn more about DoxxNet: https://doxx.net Follow Barrett Lyon on X: https://x.com/BarrettLyon Follow Joel de la Garza on LinkedIn: https://www.linkedin.com/in/3448827723723234/ Stay Updated: If you enjoyed this episode, be sure to like, subscribe, and share with your friends! Find a16z on X: https://twitter.com/a16z Find a16z on LinkedIn: https://www.linkedin.com/company/a16z Listen to the a16z Show on Spotify: https://open.spotify.com/show/5bC65RDvs3oxnLyqqvkUYX Listen to the a16z Show on Apple Podcasts: https://podcasts.apple.com/us/podcast/a16z-podcast/id842818711 Follow our host: https://x.com/eriktorenberg Please note that the content here is for informational purposes only; should NOT be taken as legal, business, tax, or investment advice or be used to evaluate any investment or security; and is not directed at any investors or potential investors in any a16z fund. a16z and its affiliates may maintain investments in the companies discussed. For more details please see http://a16z.com/disclosures.

Joel de la GarzahostBarrett Lyonguest
Oct 1, 202645mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Barrett Lyon on rebuilding privacy with a parallel, P2P internet

  1. Barrett Lyon argues the internet’s original open design has been undermined by centralized platforms, surveillance economics, and protocol stagnation that forces users to trust intermediaries.
  2. He presents DoxxNet as a parallel, mesh-based network that supports encrypted, serverless P2P communication (calls, chat, large file transfer) without phone numbers, emails, or persistent identity.
  3. The conversation critiques conventional VPNs as thin tunnels built on leased infrastructure with unclear governance, emphasizing that ownership of hardware and policy control determine real privacy.
  4. They discuss how US censorship pressures (age/KYC rules) and brittle geo-blocking can weaponize the network layer, producing overbroad and accidental restrictions.
  5. They frame ad-tech tracking combined with LLMs as “coin-operated intelligence,” enabling high-resolution profiling and manipulation, and position DoxxNet as a way to deconstruct that tracking at the network level.

IDEAS WORTH REMEMBERING

5 ideas

Centralization quietly broke the internet’s original trust model.

Lyon argues most “secure” consumer apps still rely on centralized servers that users implicitly trust, creating chokepoints for logging, coercion, breach, or metadata collection. DoxxNet aims to reintroduce direct connectivity as the default rather than an exception.

DoxxNet is positioned as a full alternative network, not a typical VPN.

Rather than being just an encrypted tunnel to a rented exit node, DoxxNet is described as a parallel, API-controllable network: domains and addresses inside it, rapid policy changes, and native P2P services built to work reliably despite modern internet constraints.

Privacy comes from removing the middleman, not just encrypting to it.

By using invitation-based cryptographic exchange (abstracted from users) and enabling phone-as-server P2P, DoxxNet claims to avoid uploading content to a platform-controlled server. This enables large, fast transfers (e.g., 20GB) with multiple layers of encryption, including post-quantum claims.

Corporate structure and infrastructure ownership are treated as core security features.

They highlight that many “free” privacy tools have unclear ownership, governance, or infrastructure leasing arrangements—raising questions about who can access data and what policies actually apply. DoxxNet emphasizes US-based operations plus a Swiss entity for European separation as a trust and compliance strategy.

Agentic operations are framed as both a scaling lever and an insider-risk reducer.

Lyon describes building 26 sites with ~12 people and “no sysadmin,” using AI to run routing and operations, while keeping inference and control-plane data on their own hardware. The goal is fewer humans with access (smaller insider-threat blast radius) without outsourcing sensitive context to major AI providers.

WORDS WORTH SAVING

5 quotes

The really big problem is on WhatsApp, Signal, iMessage, Telegram, and all of those applications disguise themselves as you sending something to somebody else, but you're really sending something to a server. But the question is like, okay, well, whose servers are those?

— Barrett Lyon

If you're not paying for it, you are the product.

— Barrett Lyon

And if it's not your equipment, uh, you can't set policy. It, it, it's just you can't.

— Barrett Lyon

And we have no network administrator, no sysadmin. It's all done by AI.

— Barrett Lyon

When you combine all of the tracking that's being done on every different app that you're using or every different website, and it accumulates, and then it's being stored by who knows who, where, and being sold, and then when you aggregate all those data points together, you could know if you're a coffee drinker, what time you wake up in the morning, uh, what, what your income is, where you shop, um, how often you purchase things.

— Barrett Lyon

DoxxNet origin story and missionProtocol stagnation and carrier-grade NATVPN limitations and infrastructure trustParallel network with internal domains/IP leasingServerless P2P chat, calling, and large file transferCensorship creep, KYC/age-gating, and geo-block blast radiusAd-tech tracking, telemetry, and LLM-powered profiling/manipulation

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