Cyber unicorn Silverfort acquires one-year-old AI startup Fabrix for tens of millions
Fabrix, founded in 2025 and backed by $8 million in Seed funding, will see its team join Silverfort as the companies develop an identity protection engine.
Israeli cybersecurity unicorn Silverfort is acquiring Israeli startup Fabrix, which specializes in securing identities using artificial intelligence. The value of the deal was not disclosed but is estimated to be in the tens of millions of dollars. Following the acquisition, Fabrix’s 14 employees will join Silverfort.
Fabrix was founded in 2025 by CEO Raz Rotenberg, former founding engineer at Run:ai, which was acquired by Nvidia, and CTO Ofir Yakovian, former tech lead at Orca Security and Microsoft Entra who holds an M.Sc. in quantum computing. VP of R&D Roee Oz was the former chief architect for Microsoft Defender for Cloud and led Microsoft’s AI security incubation. The company raised $8 million in Seed funding from Norwest, toDay Ventures and Jibe Ventures, as well as from founders and executives at Google, Palo Alto Networks, Cyera, Microsoft, Tenable and Nvidia.
Following the acquisition, the companies plan to build an identity protection and access control engine that determines in real time which organizational systems each identity - human, non-human, or AI agent - can access.
This is not Silverfort’s first acquisition. The company has raised over $222 million to date, including $116 million in a Series D in 2024, and employs approximately 600 people worldwide, about half of them in Israel. In November 2024, Silverfort acquired Rezonate, an Israeli company specializing in cloud identity security. With Fabrix, Silverfort is expanding its platform to address the challenge of making complex, real-time access decisions at the scale and sophistication required for non-human identities and AI agents.
“Today, Identity Security and access control rely on rules that are created at ‘admin time’, attempting to pre-define access. But in the AI era, it’s becoming impossible to keep up, and organizations are rapidly losing control. The only way to mitigate this risk without stopping the business is to make access decisions at runtime, using AI and deep context,” said Hed Kovetz, CEO and Co-Founder of Silverfort. “Together with Fabrix, Silverfort’s platform will empower enterprises to protect their human, non-human, and agentic identities and their access, dynamically and continuously, using a runtime AI decisioning engine. Fabrix’s innovative technology and track record across AI, security and identity bring the expertise needed to create the new standard for Identity Security in the AI era.”
“We founded Fabrix with a clear vision: making Identity Security easier, faster, and more scalable using an AI-native approach,” said Raz Rotenberg, CEO and Co-Founder of Fabrix. “By joining Silverfort, we can bring this transformation to the largest companies in the world and combine our AI engine with Silverfort’s runtime enforcement to create something no one has achieved before. We are excited to become part of the team shaping the future of identity security.”
