Go hack yourself.
Before they do.
Test and prove your security with the world’s best AI hacker, on your side.
You've invested millions.
Can you prove you're secure?
AI has shifted the advantage to the attacker. While your team drowns in noise and manual patches, AI has handed attackers unprecedented scale and speed.
HOW IT WORKS
Shut down exploitable attack
paths at
machine speed.
Move from vulnerability management to closing proven attack paths in just a few clicks.
Hack
Prove exploitability with real attacks.
Knowing a vulnerability exists isn’t enough. You need to know if it’s actually exploitable.
Fix
Prioritize what actually matters.
Verify
Prove exploitability with real attacks.
Repeat
Prove continuous resilience.
1 click re-testing to prove your secure.
1 click re-testing to prove you’re secure.
Eyebrow
Customer stories heading here
24/7
“We moved beyond point-in-time testing to continuously validate real exposure. NodeZero gave us clearer priorities, faster response, and better visibility into what actually matters. Security is now an ongoing discipline—not just a once-a-year exercise.”
Mid Devon,
District Council, Public Sector
75% lower MTTR
“Retailers need to start thinking like attackers, before attackers do.”
Jerome’s Furniture,
Retail
45% fewer weaknesses
“NodeZero allowed us to cover a wider base in a shorter period of time.”
City of St. Petersburg,
Public Sector
PROACTIVE SECURITY PLATFORM
Real AI-driven attacks, trusted safely in production.
Horizon3’s NodeZero® autonomously executes real attack techniques, without agents or disruption. We proactively show exactly how attackers move, what they access, how to stop them, and verify fixes instantly.
Proactively prove that you’re resilient.
NodeZero® isn’t a scanner. We show you the real risk and impact on your business. Know exactly where you stand so you can stop guessing and start proving your security posture with confidence.
TRADITIONAL SECURITY
Static pre-defined analysis
Tests what you already know.
Theoretical risk
Delivers opinion-based risk scores.
Paralyzing volume
Produces noisy, high-volume to-do lists that overwhelm your team.
Periodic testing
Delivers results that become stale rapidly.
Based on assumptions
Relies on the hope that your efforts and tools are enough.
HORIZON3
Autonomous comprehensive attacks
Learns and adapts with every test.
Proven impact
Real exploitation reveals actual business exposure.
Clarity of action
Gives you confidence on exactly what to fix now, and what can wait.
Continuous validation
Know the impact of every change in your environment.
Anchored in evidence
Provides continuous proof of your security posture.
Static pre-defined analysis
Tests what you already know.
Theoretical risk
Delivers opinion-based risk scores.
Paralyzing volume
Produces noisy, high-volume to-do lists that overwhelm your team.
Periodic testing
Delivers results that become stale rapidly.
Based on assumptions
Relies on the hope that your efforts and tools are enough.
Autonomous comprehensive attacks
Learns and adapts with every test.
Proven impact
Real exploitation reveals actual business exposure.
Clarity of action
Gives you confidence on exactly what to fix now, and what can wait.
Continuous validation
Know the impact of every change in your environment.
Anchored in evidence
Provides continuous proof of your security posture.
Why trust Horizon3
We put the World’s Best AI Hacker™, NodeZero️, on your side to safely run in production — because production is where the hackers attack.
Purpose-built AI
NodeZero® uses the right AI for the right problem, from machine learning to GenAI. We deliver repeatable, evidence-based results with zero hallucinations.
Learns at machine scale
NodeZero® learns from hundreds of thousands of production autonomous tests — outpacing the collective history of manual pentesting in just one year.
Proven production-safe
NodeZero® has achieved zero downtime across all production tests, earning the trust of the world’s most sensitive high-security environments.
Evidence, not opinion.
Don’t just take our word for it.
#1 in security
Inc. 5000 Fastest Growing Companies
#3 overall
300,000+
pentests safely run in production
Horizon3.ai is trusted by global governments, Fortune 10 giants, and major healthcare providers, where the need for security and safety is absolute.
“…without taking an attackers perspective by considering actual attack vectors that they can use to get in, you really can’t be ready.”
Jon Isaacson
Principal Consultant
