Investors are buying into that vision. doxx.net announced a $38 million Series A led by Andreessen Horowitz, with participation from Miami-based ANIMO Ventures and Focal.vc.\u00a0<\/p>\n
AI agents are starting to browse websites, access services and take actions for users. That means many of the security and privacy issues humans already face online could become more important when software is operating with access to their accounts and data.<\/p>\n
doxx.net calls its approach \u201cAgentic Defined Networking,\u201d or ADN. In practice, it gives users and their agents a private network where they can communicate with one another, transfer files, browse and configure parts of the network itself.<\/p>\n
The company said its network has its own IP space, DNS root, certificate authority and bare-metal servers. Its peer-to-peer communications system also allows users to make calls, video chat, send messages and transfer files directly between devices rather than routing the communication through a central communications server.<\/p>\n
Lyon said one of the early tests brought home what that infrastructure could mean.<\/p>\n
\u201cHave you ever had your agents configure your network, lease public IP addresses, and set up your security policy, to then discover you can call your friends through your own private network with no one in the middle? No record of the call? No phone company involved, where your phone is also the server?\u201d Lyon shared in a statement. \u201cThat was our first freedom call.\u201d<\/p>\n
For Lyon, doxx.net follows more than two decades spent deep in the plumbing of the internet. He founded Prolexic, an early company focused on defending businesses against distributed denial-of-service attacks, which Akamai later acquired. He subsequently helped build content delivery company BitGravity, acquired by Tata Communications, as well as XDN and Defense.Net, acquired by Fortinet and F5, respectively.<\/p>\n
His latest company is taking aim at another basic part of how the internet works: trust.<\/p>\n
Most privacy products still require users to trust someone else\u2019s infrastructure. doxx.net\u2019s argument is that privacy should instead come from how the network is built.<\/p>\n
\u201cThe industry sells privacy as a feature while routing your traffic through rented infrastructure they don\u2019t own and can\u2019t verify,\u201d Lyon commented. \u201cWe physically built something different: a platform where privacy comes from the architecture itself, not a policy document.\u201d<\/p>\n
That approach extends to AI agents. Agents on the platform can have their own network identities and private channels, while a network API with native MCP support allows them to configure infrastructure. DNS-level security is designed to stop agents from reaching known or suspected phishing and malware destinations while acting for users.<\/p>\n
\u2713<\/p>\n
Check your inbox for a confirmation email.<\/p>\n
The company said it has blocked more than 38 million threats since beginning its closed beta in December 2025.<\/p>\n
\u201cThe internet was never designed for privacy,\u201d asserted Andreessen Horowitz partner Joel De La Garza. \u201cdoxx.net has built a one-stop privacy stack from first principles, delivering truly private security and communications capabilities, so humans and AI agents can run on a network that is private by architecture, not by marketing promise.\u201d<\/p>\n
AMINO Ventures Founder and General Partner Nico Berardi shared his view: \u201cDoxx is building something meaningful: what the internet should have been. Barrett is a legend in the space and a true wunderkind of a technologist. I\u2019ve known Nicolai since his Miami Angels days, and his track record in infrastructure is unique. Add Joel and Martin Casado from a16z \u2014 arguably the leading infrastructure investors of this cycle \u2014 and you have something pretty special.\u201d<\/p>\n
Berardi adds: \u201cThe fact that a company this sophisticated is being built here is a testament to just how far Miami tech has come.\u201d<\/p>\n
So what\u2019s it like to build this platform in Miami? \u201cMiami, as a founder and builder, is not the party place people think about,\u201d Lyon told Refresh Miami. \u201cIt\u2019s a high quality of life that allows me to focus, design and think.\u201d\u00a0<\/p>\n
Lyon continued: \u201cAs an artist, the colors and what we have been building are reflected in our product, which gives people a completely different way to experience the Internet on their own terms.\u201d<\/p>\n
The platform is now available in open beta, with native apps for iOS, macOS and Android and support for Windows and Linux. Users can start without providing an email address, phone number, username or password.<\/p>\n
There is a certain symmetry to Lyon\u2019s latest project. The founder who spent years building companies to defend the existing internet is now asking what the network should look like when some of its most active users may no longer be human.<\/p>\n
Nancy Dahlberg contributed to this report.<\/p>\n
PICTURED ABOVE: Barrett Lyon, founder and CEO (left), and Nicolai Bezsonoff, COO (right).<\/p>\n
READ MORE IN REFRESH MIAMI:<\/p>\n
I am a Miami-based technology researcher and writer with a passion for sharing stories about the South Florida tech ecosystem. I particularly enjoy learning about GovTech startups, cutting-edge applications of artificial intelligence, and innovators that leverage technology to transform society for the better. Always open for pitches via Twitter @rileywk or www.RileyKaminer.com.<\/p>\n ![\"Riley](\"https:\/\/www.newsbeep.com\/us-fl\/wp-content\/uploads\/2026\/10\/4q0a7418-1.jpeg\")
<\/a> <\/p>\n<\/a>Latest posts by Riley Kaminer (see all<\/a>) \t<\/p>\n","protected":false},"excerpt":{"rendered":"Barrett Lyon has spent much of his career fixing problems with the internet. Now, he thinks the bigger…\n","protected":false},"author":2,"featured_media":415722,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[123,125,124],"class_list":["post-415721","post","type-post","status-publish","format-standard","has-post-thumbnail","category-miami","tag-miami","tag-miami-headlines","tag-miami-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/posts\/415721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/comments?post=415721"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/posts\/415721\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/media\/415722"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/media?parent=415721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/categories?post=415721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us-fl\/wp-json\/wp\/v2\/tags?post=415721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}