Case Study: JTI Cybersecurity achieves scalable, continuous autonomous penetration testing and stronger defense-in-depth with Horizon3.ai (NodeZero)

The Critical Role of Autonomous Penetration Testing in Strengthening Defense in Depth

JTI Cybersecurity, founded in 2020 with a 5–10 person team, helps organizations worldwide improve their security posture. As demand grew, JTI’s founder Jon Isaacson found manual penetration testing unsustainable and needed a cost‑effective, continuously runnable solution that shows risks from an attacker’s perspective—so he evaluated and trialed Horizon3.ai’s autonomous pentesting product, NodeZero.

JTI onboarded Horizon3.ai’s NodeZero to automate continuous penetration testing: NodeZero enumerates the attack surface, exploits vulnerabilities like an adversary would, and delivers actionable logs and reports. Horizon3.ai’s solution matched and in some cases found issues that manual testing missed, enabling JTI to scale engagements, verify remediations, increase coverage, and reduce manual effort while delivering clearer, higher‑value remediation guidance to clients.

JTI Cybersecurity

Jon Isaacson

Principal Consultant