The Milky Way stretching across a dark sky above tree silhouettes on Old Mission Peninsula, Michigan, during the 2026 Perseid meteor shower.

Traverse City, MI45.00° N 85.48° W

Liam Randall

How do you safely run code you didn't write?

I've worked on that question from the Network to Kubernetes to WebAssembly. Founder and CEO of Cosmonic. Co-creator of CNCF wasmCloud.

The Milky Way during the 2026 Perseid meteor showerOld Mission Peninsula, 45th parallel

Five epochs

From the wire to the sandbox

To me, my career progression still feels like I am working on the same problem, just at a different point of leverage. How do we build and run secure, performant, platforms?

  1. Epoch I1995–1999

    Network Engineering

    Where the code ran
    Building the network
    Open source
    Distributed plugins
    Company
    Xavier University
    Outcome
    Learned the power and reach of open source
  2. Epoch II2000–2003

    Online Platform

    Where the code ran
    B2B Marketplace
    Open source
    Business model, bringing together buyers & sellers
    Company
    iR2, acquired by IDSA
    Outcome
    Insight into two sided markets, platform plays
  3. Epoch III2003–2014

    Network Security

    Where the code ran
    Traffic on the wire
    Open source
    Bro, now Zeek
    Company
    Broala
    Outcome
    Became Corelight
  4. Epoch IV2014–2020

    K8s Clusters, Orchestration

    Where the code ran
    Containers in regulated enterprises
    Open source
    Kubernetes, Cloud Custodian
    Company
    Critical Stack
    Outcome
    Acquired by Capital One
  5. Epoch V2019–now

    Sandboxes

    Where the code ran
    WebAssembly components, agents and AI-generated code
    Open source
    wasmCloud, a CNCF project
    Company
    Cosmonic
    Outcome
    Building now

Through out my career I found myself at the intersection of enterprise, scale, security, and open source. I have built platforms in highly regulated environments for publicly traded companies, the largest tech platforms, US Government, and enterprises of all sorts. I have delivered solutions into the most secure and well known enterprises on the planet.

Catalog

Featured Ventures & Investments

I believe in open source and community collaboration. A few of the companies founded, projects created and early bets from across my career.

NameIndustryOpen sourceRoleComment
CosmonicSandboxingCNCF wasmCloudFounder and CEO

Still building: WebAssembly sandboxes for agents, untrusted code and AI-generated code. wasmCloud began at Capital One and is now a CNCF Incubating project.

wasmCloud joins CNCF, 2021Seed round, 2022Desktop public beta, 2026

Horizon3.aiSecurityNoneSeed investor

Autonomous penetration testing with NodeZero, attacking networks the way a real adversary would. In August 2026 it raised a $250M Series E at a valuation above $2B.

Series E, 2026

StackletSecurityCNCF Cloud CustodianInvestor

Leading cloud governance, built on Cloud Custodian, the policy engine I helped bring from Capital One into the CNCF. I also joined as VP of business development.

Series A, 2021

ElectricSQLDatabasesElectric SyncPGliteSeed investor

Local-first sync for Postgres, and PGlite, Postgres compiled to WebAssembly. Databricks acquired Electric in August 2026 to give AI agents their own local databases.

Acquired by Databricks, 2026

KolideSecurityosquerySeed investor

The first check in, and a contributor to the early osquery ecosystem alongside Dustin Webber. Kolide turned device trust into a product; 1Password acquired it in 2024.

Seed, 2016Acquired by 1Password, 2024

Critical StackOrchestrationKubernetesFounder

The first commercial Kubernetes distribution, built security-first for banks and government. $5M in revenue in its first year, a $3M Army Cyber Innovation Challenge award, then acquired by Capital One.

Army award, 2015Acquired by Capital One, 2016Launch at Capital One, 2017

Broala / CorelightSecurityBro / ZeekFounder

An early pioneer in network anomaly detection, focused on hunting nation-state threats. Co-founded with Vern Paxson, Robin Sommer and Seth Hall to support Bro commercially; renamed Corelight in 2017.

Network World, 2013Corelight launch, 2017

Transmissions

Public speaking

From a 2013 talk at Shmoocon on the Bro network programming language to a 2025 talk on sandboxing thousands of apps.

Jun 2017 · OpenSec 2017, Boston

OpenSec 2017 Keynote

The turn from network security toward platforms.

37 more talks and classes

Giving back

Teaching and community

  • 100's workshops

    Free Bro classes at security conferences, wasm workshops and more..

  • CNCF Stewardship

    Serial volunteer, founded for the CNCF: Cloud Native Wasm Day, which I co-chaired, and WasmCon, which I chaired.

  • 2024

    Former CNCF Ambassador. Leading weekly wasmCloud community calls since 2020.

I frequently volunteer to help put on community oriented conferences in security, organization, and governanace. I am an active contributor in multiple standards bodies and open source foundations, such as the CNCF, BSides, Linux Foundation, ByteCode Alliance, and more.