Novee Raises $51.5M to Transform Offensive Security

Novee Emerges From Stealth to Counter AI Cyberattacks With a Proprietary AI Hacker

Today, we are announcing that Novee has emerged from stealth with $51.5 million in funding, led by YL Ventures, Canaan Partners, and Oren Zeev.

We founded Novee to make offensive security continuous, intelligent, and aligned with how real attackers operate. We raised our Series A round within four months of founding – one of the fastest funding trajectories in the offensive security sector, driven by rapid customer traction, an elite team spanning AI research and offensive cybersecurity backgrounds, and growing urgency as AI-powered cyberattacks accelerate.

The problem: attackers move at machine speed, defense does not

Attackers are already leveraging AI to operate at machine speed, automating reconnaissance, continuously probing systems, and weaponizing weaknesses faster than defenders can respond.

To keep up, defense must move at the same pace.

Yet security testing remains tethered to human-scale workflows. While software is now built and deployed continuously, penetration testing still happens episodically or relies on shallow automation.

Organizations are no longer defending against static threats. They’re up against automated, adaptive adversaries who can exploit a vulnerability in the time it takes a human tester to open a ticket, leaving dangerous blind spots deep inside production environments.

Novee’s solution, and the team behind it

Novee closes this gap by transforming elite offensive tradecraft into continuous, AI-driven penetration testing, simulating the sophisticated tactics of real-world hackers. It’s the only penetration testing platform capable of uncovering novel vulnerabilities, including complex business logic flaws that previously only the most advanced manual pentesters could find. From initial exploit validation to automated retesting, Novee provides an end-to-end loop that confirms critical risks are not just identified, but permanently removed.

This approach is built by a team that has spent decades operating at the highest levels of offensive cyber and critical infrastructure defense, including nation-state–level operations.

The team is led by co-founders Ido Geffen (CEO), Gon Chalamish (CPO), and Omer Ninburg (CTO), veteran offensive security leaders from the Israel Defense Force’s most elite cyber programs.

Why a proprietary offensive AI model matters

While other AI penetration testing platforms rely on generic AI models optimized for text and general reasoning, Novee has built the only proprietary, purpose-trained, patent pending AI model designed specifically for offensive security. Trained on real-world exploitation techniques, tools, and workflows, Novee’s proprietary AI model outperformed frontier LLMs such as Gemini 2.5 Pro and Claude 4 Sonnet by over 55% on constrained web exploitation challenges, achieving up to 90% accuracy where general-purpose models typically plateau at around 65%.

Attackers don’t wait for your annual pentest, and neither should your defense. What security teams actually need are high-signal findings they can trust: novel vulnerabilities that are proven exploitable. Novee has already helped organizations uncover hundreds of these novel vulnerabilities and fix them continuously, closing gaps before attackers exploit them.

We are coming out of stealth to scale what we have already proven. If you want to see how continuous, attacker-level validation works in practice, request a demo.