
Cybersecurity
Our increasingly digital world
is under constant attack.
Each of our companies has a mission to keep business, employee, and customer information safe by anticipating where and how adversaries will strike next.
Why Cybersecurity
From personal, customer, and financial data to intellectual property, the amount of information we store and transmit online is growing every day.
And cyberattacks are getting more sophisticated, adapting faster, and becoming more frequent—threatening businesses, industries, and lives.
Cybersecurity is fundamental to the continued digitization of our world. Our portfolio companies are advancing the future of cybersecurity by driving innovation in next-generation protective technologies and developing advanced threat detection solutions. These efforts ensure proactive responses to evolving cyberthreats, leveraging AI-driven analytics, real-time monitoring, and automated defenses to stay ahead of sophisticated attack vectors and emerging vulnerabilities.
“Working with .406 Ventures has been a game-changer for Run Security. Greg’s deep expertise, strategic guidance, and unwavering support have helped us scale and innovate in ways we couldn’t have done alone. The .406 team is more than investors—they’re true partners in our mission to redefine application security.”

Gene Fay
CEO, Run Security
Where We Invest
- AI for Security
- Security for AI
- Trustworthy AI
- Identity Security
The .406 Edge
Cybersecurity is in our DNA.
As operators and investors in the information security space for over 30 years, we’ve lived the problem and have invested in dozens of innovative companies creating leading solutions.
We get the evolution.
Attack surfaces are growing, attack vectors are evolving, and adversaries are innovating. With the ground constantly shifting, the cybersecurity cat and mouse game makes it incredibly difficult for new entrants to gain a foothold in this now mainstream market. We understand the moving pieces and will help you to navigate the waters to ensure that your company rises above the noise.
People matter.
We’ve carefully crafted our council of over 40 cybersecurity leaders and buyers over the years to ensure that we’re focused on the right challenges and can plug you into some of the most influential leaders in the industry as you build your business.
Our sleeves are shredded.
There’s no time to roll them up as we’re in the trenches with you from the get go. Data is the lifeblood of every business, and bad actors have more and more opportunities to breach your customers as digital transformation accelerates. We’ll work with you to forge the path to success whether through technical or go-to-market means or both.
Sector Intersections
Cybersecurity x Healthcare
Critical healthcare systems require world-class protection, and we are at the forefront of the technologies that safeguard the healthcare sector from cyber attacks.
Cybersecurity x Data + AI
AI tech capabilities are advancing exponentially, creating new attack surfaces as well as powerful new tools for adversaries. We are investing in cutting edge companies that protect AI as well as those that use advanced AI to combat cyber threats across the stack.
Companies
Get to know our cybersecurity companies
AuthAir

- Cybersecurity
AuthAir developed cutting-edge authentication solutions that make authentication systems more automated and reliable. Acquired by LogMeIn.
Carbon Black

- Cybersecurity
Carbon Black provided advanced threat protection for servers and endpoints. Acquired by VMware.
Chosen Security

- Cybersecurity
ChosenSecurity was a managed service provider that helped to deploy identity verification and strong authentication solutions. Acquired by PGP.
Corvus

- Data + AI
- Cybersecurity
Corvus leveraged digital data and AI to underwrite cyber insurance. Acquired by Travelers.
Edgewise Networks

- Cybersecurity
Edgewise Networks proactively prevented application compromise and attack progression by network-borne threats. Acquired by Zscaler.
GreatHorn

- Cybersecurity
GreatHorn combined patented threat detection, continuous monitoring, end-user education, and integrated remediation capabilities into one comprehensive cloud email security platform.
HYPR

- Cybersecurity
HYPR combines enterprise-grade security with a mobile-first approach and frictionless customer experience to passwordless identity assurance.
Memento

- Cybersecurity
Memento, Inc. provided enterprise fraud management. Acquired by FIS.
Mindgard

- Cybersecurity
- Data + AI
Mindgard, a platform for automated red teaming and security testing of AI, enables organizations to protect their AI systems.
Our Team
Investing Team


About the Council
Insights that move as fast as technology.
Our Executive Council is made up of cybersecurity experts and leaders who keep a pulse on the most important industry developments.