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In the high-stakes world of cybersecurity, lightning can indeed strike twice—and Jonathan Langer and Itay Kirshenbaum are determined to prove it. After selling their previous venture, Medigate, for a staggering \$400 million, the duo has reassembled, joined by top-tier industry veterans, to launch a bold new startup—currently operating under the code name ACT. Backed by \$20 million in Seed funding from Team8 and Bessemer Venture Partners, ACT promises to take cloud security to an entirely new level, offering more than just alerts—it’s about empowering security teams to act decisively.
the Original
The founders of Medigate—Jonathan Langer and Itay Kirshenbaum—are making a comeback in the cybersecurity arena with a stealth-mode startup called ACT. This new company has already raised \$20 million in Seed funding from investors including Team8 and Bessemer Venture Partners.
ACT’s leadership team is a powerhouse:
Jonathan Langer – CEO (formerly COO of Claroty)
Stephen Goldberg – Chief Product Officer (ex-senior executive at Claroty)
Itay Kirshenbaum – CTO (Medigate co-founder)
Ilai Fallach – cybersecurity veteran with multiple leadership roles
Their mission is to address cloud risks by creating a platform that not only detects vulnerabilities but also empowers organizations to take immediate, effective action—going beyond the standard “visibility and reporting” approach that dominates the market today.
This isn’t the team’s first major success. Medigate, founded in 2017 by Langer, Kirshenbaum, and Pini Pinhasov, built a niche cybersecurity platform specifically for medical devices—part of the Internet of Medical Things (IoMT) ecosystem. By securing hospital equipment like CT scanners, infusion pumps, and patient monitors, Medigate filled a critical gap in the healthcare industry’s security landscape.
Medigate’s innovation and market relevance led to its acquisition by Claroty in 2021 for roughly \$400 million. Claroty itself operates in the cybersecurity space for critical infrastructure and essential facilities, with estimated revenues of \$400 million and previous IPO rumors valuing it at \$3.5 billion.
ACT now seeks to replicate—and possibly surpass—that success, targeting the rapidly expanding world of cloud security, where threats evolve faster than traditional defenses can adapt.
What Undercode Say:
The launch of ACT is more than just a sequel to the Medigate success story—it’s a direct response to one of cybersecurity’s most urgent frontiers: cloud-native threat defense.
Cloud adoption has exploded, with businesses large and small relying on distributed, API-driven architectures. This growth, however, has left organizations vulnerable to configuration errors, privilege escalations, supply chain attacks, and data leakage—risks that traditional security tools struggle to contain.
By focusing not just on detection but actionable remediation, ACT is positioning itself as a disruptor. Many security solutions today act like overly polite messengers—they tell you there’s a problem, but they don’t help fix it. ACT’s stated mission suggests an “offense-enabled defense” strategy: giving teams the ability to mitigate risks in real-time without waiting for long, bureaucratic security cycles.
From an investor’s standpoint, the \$20 million Seed round is substantial—especially for a stealth startup. It signals both confidence in the founders’ track record and the urgency of the market problem. The participation of Team8 and Bessemer adds credibility, as both firms have a deep history of backing category-defining cybersecurity ventures.
Historically, startups with a founder group that has already delivered a nine-figure exit have a much higher chance of attracting talent, partners, and enterprise customers early on. This is crucial in the cloud security sector, where trust and technical execution must align from day one.
It’s also worth noting that the transition from IoMT security to cloud security is not as large a leap as it may seem. Both fields deal with complex, interconnected systems with high stakes for downtime or breaches. Langer and Kirshenbaum already understand how to operate in industries where compliance, uptime, and attack resilience are non-negotiable—skills that translate directly to protecting multi-cloud environments.
The big question is whether ACT can differentiate itself in an increasingly crowded Cloud Security Posture Management (CSPM) and Cloud-Native Application Protection Platform (CNAPP) space. Competitors like Wiz, Palo Alto Networks, and Orca Security have set high bars for functionality and market share. ACT’s edge will depend on speed of deployment, breadth of integrations, and automation capabilities.
If they can combine these with their executional discipline from the Medigate playbook, ACT could quickly become a go-to cloud security provider—especially for large enterprises seeking proactive, intervention-ready solutions.
🔍 Fact Checker Results:
✅ Medigate was acquired by Claroty in 2021 for approximately \$400M.
✅ ACT has raised \$20M in Seed funding from Team8 and Bessemer.
✅ ACT’s focus is on actionable cloud risk mitigation, not just detection.
📊 Prediction:
Within 3–5 years, ACT could become a prime acquisition target for major cybersecurity players seeking to bolster their cloud-native defense portfolio. If it maintains a rapid innovation cycle, it may also push towards an IPO, potentially surpassing Medigate’s valuation—especially if enterprise cloud breaches continue to rise globally.
Do you want me to also add a short competitor landscape chart so the article hits harder for business readers? That could make it even more SEO-attractive.
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Reported By: calcalistechcom_90ee743f4f735af6f5110959
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