Israeli identity security company Silverfort said Tuesday it has acquired Fabrix Security, an AI-native identity security startup, in a deal aimed at expanding its platform for the era of AI agents and non-human identities.
The companies did not disclose the terms of the deal.
Silverfort said the acquisition will allow it to deliver autonomous identity security at runtime, using Fabrix’s AI-based decisioning engine together with Silverfort’s Runtime Access Protection technology. The combined platform is designed to help enterprises decide and enforce, in real time, what each human, machine or AI agent can access.
The deal was completed during the war, which the companies said reflected the resilience of Israel’s technology sector and its ability to continue building and growing under difficult conditions.
Silverfort has raised more than $222 million to date and employs about 600 people worldwide, roughly half of them in Israel. The acquisition follows Silverfort’s purchase of Israeli cloud identity security company Rezonate in November 2024.
Fabrix, which emerged from stealth seven months ago, was founded by CEO Raz Rotenberg, a former founding engineer at Run:ai, which was acquired by Nvidia, and CTO Ofir Yakovian, a former tech lead at Orca Security and Microsoft Entra. VP R&D Roee Oz previously served as chief architect for Microsoft Defender for Cloud and led Microsoft’s AI security incubation.
The Tel Aviv-based startup raised $8 million from Norwest, toDay Ventures and Jibe Ventures, as well as founders and executives from Google, Palo Alto Networks, Cyera, Microsoft, Tenable and Nvidia. Its employees will join Silverfort.
Silverfort said the acquisition addresses one of the growing challenges facing large organizations: managing access decisions for non-human identities and AI agents at a speed and scale that traditional identity tools cannot handle.
“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,” said Hed Kovetz, CEO and co-founder of Silverfort. “The only way to mitigate this risk without stopping the business is to make access decisions at runtime, using AI and deep context.”
Kovetz said Fabrix’s technology would help Silverfort protect human, non-human and agentic identities dynamically and continuously through a runtime AI decisioning engine.
Raz Rotenberg, CEO and co-founder of Fabrix, said the company was founded to make identity security easier, faster and more scalable through 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,” he said.
Fabrix’s technology will add AI-driven authorization and access control for humans, machines and AI agents; AI agents to help customers operate Silverfort’s platform; broader Just-in-Time access coverage; and an identity knowledge graph that analyzes access activity, organizational context and intent.
Most of the joint capabilities resulting from the acquisition are expected to become available in the second half of 2026.
Silverfort says it serves more than 1,000 customers, including some of the world’s largest enterprises.