Horizon3.ai

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Read 29 Horizon3.ai reviews and testimonials from customers, explore 22 case studies and customer success stories, and watch 10 customer videos to see why companies chose Horizon3.ai as their Breach and Attack Simulation

The NodeZero™ platform empowers organizations to continuously find, fix, and verify exploitable attack surfaces. It is the flagship product of Horizon3.ai, founded in 2019 by former industry and U.S. National Security veterans. Our mission is to help organizations see their networks through the eyes of the attacker and proactively fix problems that truly matter, improve the effectiveness of their security initiatives, and ensure that they are prepared to respond to real cyberattacks.

Reduce your security risk by autonomously finding weaknesses in your network, knowing how to prioritize and fix them, and immediately verifying that your fixes work. NodeZero delivers production-safe autonomous pentests and other key assessment operations that scale across your largest internal, external, cloud, and hybrid cloud environments. No required agents, no code to write, and no consultants to hire.

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Customer Rating Review Scorebased on 654 reference ratings
4.8/5.0 (654)
  • Top Rated Software 2025 2025
    2025Top Rated Software Award
  • 2024
    Winter 2024Rising StarBreach & Attack Simulation Software

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Featured Testimonials

  • "Horizon3.ai and NodeZero are critical in helping us focus on actual threats, improve ROI, and continuously enhance our security posture."

  • We pride ourselves on maintaining a strong security posture, which is why we partner with NodeZero for pentesting. Within hours of running NodeZero internal pentesting, our MSP was able to quickly review the findings and remediate the weaknesses. As a member of the DIB, it's my personal responsibility to help protect our nation's secrets. With Horizon3.ai and NodeZero verifying our system security at a regular cadence, I'm confident we're well-positioned to handle the critical data ultimately supporting our troops.

  • “DRI is a soft money funded organization, so we are always budget focused, and what drew us to [Horizon3.ai] was the ability to get a full featured, easy to use pentest program at a price we can afford. The fact that NodeZero is autonomous makes things significantly easier. We don’t have to pay a red team to do an expensive, in-person comb-through of our security controls.”

Featured Case Studies

  • Higher Education Organization Improves Cybersecurity Posture with NodeZero

  • Healthcare Faces an Aggressive Threat Landscape

  • Higher Education Institution Finds a Real Look at Vulnerabilities and Exploits with NodeZero

Featured Customer Videos

Additional Horizon3.ai Information & Resources

Read Horizon3.ai Reviews, Testimonials & Customer References from 29 real Horizon3.ai customers.

Browse Horizon3.ai Case Studies, Customer Success Stories, & Customer References from 22 businesses that use Horizon3.ai.

Watch Horizon3.ai Customer Videos to learn why 10 businesses chose Horizon3.ai.