Horizon3.ai

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Read 30 Horizon3.ai reviews and testimonials from customers, explore 22 case studies and customer success stories, and watch 13 customer videos to see why companies chose Horizon3.ai as their Adversarial Exposure Validation

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 782 reference ratings
4.8/5.0 (782)
  • 2025
    Winter 2025Rising StarBreach & Attack Simulation Software
  • Top Rated Software 2025 2025
    2025Top Rated Software Award

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Featured Testimonials

  • “When there is a cyberattack on a PSAP, there is the potential for loss of life due to the caller not being able to get through to the 911 call center. Our job is to prevent that situation. We specialize in knowing the cyber threat actor’s tactics, techniques, and procedures (TTPs) so we can protect organizations from those things.”

  • “This is a good experience for me to teach the team the importance of credential use and reuse. We never would have found this vulnerability without NodeZero.”

  • "The technology is solid and easy to set up and use."

Featured Case Studies

  • Turning Cyber Resilience into a Superpower

  • Implementing Continuous Assessment to Meet the Demands of Today’s Threat Landscape

  • Empowering Educational Compliance: Navigating the Future with Autonomous Pentesting in Academia

Featured Customer Videos

Additional Horizon3.ai Information & Resources

Read Horizon3.ai Reviews, Testimonials & Customer References from 30 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 13 businesses chose Horizon3.ai.