Horizon3.ai

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Read 26 Horizon3.ai reviews and testimonials from customers, explore 21 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 514 reference ratings
4.8/5.0 (514)
  • Top Rated Software 2025 2025
    2025Top Rated Software Award
  • 2024
    Winter 2024Rising StarBreach & Attack Simulation Software

More from Horizon3.ai

Featured Testimonials

  • “Resilience has become our story and our superpower.”

  • “This is critical infrastructure that controls who gets access to the road and needs to be protected with the utmost security.”

  • “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.”

Featured Case Studies

  • Regina International Airport Uses NodeZero to Close Gaps, Improve Efficiency

  • Medical Clinic - Customer Case Study

  • Securing the Move: Cyber Resilience in the Transportation and Supply Chain Industry

Featured Customer Videos

Additional Horizon3.ai Information & Resources

Read Horizon3.ai Reviews, Testimonials & Customer References from 26 real Horizon3.ai customers.

Browse Horizon3.ai Case Studies, Customer Success Stories, & Customer References from 21 businesses that use Horizon3.ai.

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