Silverfort, a leading identity security company, has acquired Fabrix Security, an AI-native identity security startup, to deliver the first autonomous identity security platform operating at runtime. The combined platform is designed to protect human, machine, and agentic identities at the speed and scale that traditional, rules-based approaches can no longer handle. Financial terms were not disclosed.
Fabrix was founded by CEO Raz Rotenberg, formerly a founding engineer at Run:ai, which was acquired by Nvidia, and CTO Ofir Yakovian, a former tech lead at Orca Security and Microsoft Entra with a master’s degree in quantum computing. VP of R&D Roee Oz was previously chief architect for Microsoft Defender for Cloud and led Microsoft’s AI security incubation. The company raised $8 million from Norwest, toDay Ventures, and Jibe Ventures, alongside founders and executives at Google, Palo Alto Networks, Cyera, Microsoft, Tenable, and Nvidia.
The acquisition addresses a growing structural challenge in enterprise security. The surge of non-human and agentic identities, along with their speed and unpredictable access behavior, is breaking traditional identity and access tools. Manually written authorization rules and periodic access reviews, already limited in effectiveness for human users, cannot handle the complexity introduced by AI agents. Silverfort’s patented Runtime Access Protection technology continuously enforces access decisions across an enterprise’s entire infrastructure, while Fabrix’s identity knowledge graph and AI-driven authorization engine now provide the real-time decisioning layer on top.
Together, the platforms allow enterprises to evaluate every access request at runtime, using AI to determine what a given identity is trying to do and whether it should be permitted, with enforcement embedded directly in the execution path. The majority of joint capabilities driven by the acquisition will become available in the second half of 2026, serving Silverfort’s more than 1,000 existing customers.
KEY QUOTES:
“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.”
Hed Kovetz, CEO and Co-Founder, Silverfort
“We founded Fabrix with a clear vision: making Identity Security easier, faster, and more scalable using an AI-native approach. 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.”
Raz Rotenberg, CEO and Co-Founder, Fabrix Security
