Two weeks. That's all the time Linx Security gave itself between launching its flagship AI product and closing a $50 million Series B funding round.
The New York startup announced Autopilot—an AI agent purpose-built for identity security and governance—on March 18. By March 31, Insight Partners had led a Series B that brings Linx's total funding to $83 million since co-founders Israel Duanis and Niv Goldenberg started the company in 2023. Was the timing strategic? Almost certainly.
"Traditional identity governance isn't built for a world where AI agents and non-human identities outnumber humans by 80 to 1," said Teddie Wardi of Insight Partners, the New York-based firm managing over $90 billion in assets as of mid-2025.
It's a provocative claim, but one grounded in a shift that enterprise security teams are scrambling to address. Identity—who or what has access to your systems—has replaced the network perimeter as the primary target for attackers. And the sheer volume of identities companies now manage has exploded beyond what manual processes can reasonably handle.
The Numbers Tell a Grim Story
Microsoft's Digital Defense Report, published in January, showed identity attacks surging 32% in the first half of 2025 alone. More than 97% were large-scale password attacks. Meanwhile, Palo Alto Networks' Unit 42 incident response team found that weak identity controls factored into roughly 90% of the security breaches they investigated between October 2024 and September 2025.
What changed? In part, the rise of non-human identities—service accounts, API keys, and increasingly, AI agents deployed to handle customer inquiries, generate code, or manage internal operations. Each requires credentials. Each represents a potential attack surface.
"Identity has always been the core control layer," said Gili Raanan of Cyberstarts, the venture firm that led Linx's $6 million seed round and co-led its $27 million Series A last July. "But the explosion of AI agents has fundamentally expanded what 'identity' means."
Cyberstarts returned for the Series B, deploying capital from its $380 million Opportunity Fund II, which it closed in September specifically to back portfolio companies at later stages. Index Ventures, another existing investor, also participated.
Autopilot: Autonomy With (Supposedly) Guardrails
Linx describes Autopilot as "responsible autonomy"—continuous monitoring paired with automated remediation that doesn't require human approval for routine decisions. It's a bold proposition in an industry that's historically cautious about handing control to algorithms, particularly where access privileges are concerned.
The platform combines what the company calls Modern IGA (identity governance and administration), Identity Security Posture Management, and Just-in-Time Access into a single graph-based system. It's designed to handle not just traditional employee accounts but also the sprawling universe of service accounts, API keys, and AI agents.
Linx now employs roughly 100 people and claims 10x revenue growth in 2025 along with tripling its headcount over the past year. The company hasn't disclosed specific revenue figures or customer counts, though its website lists clients including Peloton, Wiz, and Aramark.
A Crowded, Capital-Intensive Race
Linx isn't alone in chasing this opportunity—or in raising substantial sums to do so.
Just a day after Linx launched Autopilot, Oasis Security closed a $120 million Series B (finalized March 19-20) with a similar focus on non-human and agentic identity governance. Push Security brought in $30 million in February for browser-native identity security. And in January, Saviynt pulled in a staggering $700 million in growth equity from KKR at an estimated $3 billion valuation.
The competitive intensity reflects both the problem's urgency and the market's size. Identity security platforms are no longer niche tools for compliance teams; they're becoming foundational infrastructure as companies distribute access across hybrid workforces, cloud environments, and autonomous agents.
Perhaps more than the founders expected when they started Linx three years ago.
The Pedigree Behind the Pitch
Duanis, the CEO, previously worked in identity security at Check Point and co-founded Fleetonomy, a fleet management startup that Via acquired in 2020. Goldenberg, the chief product officer, comes from Transmit Security. Both bring domain expertise, though they're navigating a category where buyer fatigue is setting in. How many "AI-powered" security platforms can one CISO evaluate in a quarter?
The company maintains its headquarters in New York with R&D operations in Tel Aviv, where it was founded. With the Series B capital, Linx plans to expand internationally, scale its enterprise sales motion, and accelerate development of autonomous identity governance features—the kind that, in theory, reduce the endless ticket queues that plague IT teams.
Whether Autopilot delivers on that promise—and whether enterprises trust an AI agent to manage their AI agents—will determine if this funding round marks an inflection point or just another well-capitalized bet in an increasingly crowded field.
For now, Insight Partners and Cyberstarts are wagering that identity security's next chapter will be written by algorithms, not analysts. And they've put $50 million behind the proposition.
