Silverfort Acquires Fabrix to Build Autonomous AI Identity Security

DALLAS, TX – April 28, 2026 – In a significant move to address the burgeoning security risks of artificial intelligence, identity security leader Silverfort today announced its acquisition of Fabrix Security, an AI-native startup. The deal, reportedly valued in the tens of millions, aims to create the industry's first autonomous identity security platform capable of protecting human, machine, and increasingly, autonomous AI agent identities at runtime.

The acquisition signals a major strategic push by the billion-dollar security firm to corner a critical emerging market: securing the very fabric of enterprise operations as they become increasingly driven by non-human actors. As companies race to adopt AI, they are unleashing armies of automated agents and services that operate at speeds and scales far beyond human oversight, creating an unprecedented identity management crisis.

The New Frontier: Securing Agentic AI

The core problem Silverfort and Fabrix aim to solve is that traditional security models are crumbling under the weight of the AI revolution. Security has long relied on rules-based access controls defined by administrators—a process that happens at "admin time." These static rules, which attempt to predict and pre-authorize who can access what, are proving dangerously inadequate against the dynamic and unpredictable nature of modern AI agents.

These non-human identities (NHIs)—from simple scripts and service accounts to sophisticated AI agents like Anthropic's Mythos—now outnumber human employees in many organizations. They create an ever-expanding attack surface, often with over-privileged and persistent credentials that are prime targets for adversaries. An attacker who compromises a single AI agent could potentially launch a complex, high-speed attack across an entire network, too fast for any human security team to detect, let alone stop.

"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, in a statement. "The only way to mitigate this risk without stopping the business is to make access decisions at runtime, using AI and deep context."

This acquisition is a direct response to this challenge, shifting the paradigm from pre-configured permissions to real-time, intelligent decision-making.

A Strategic Play in the AI Security Arms Race

For Silverfort, a company valued at over $1 billion with more than $222 million in funding, this is a calculated move to lead the next evolution of cybersecurity. This is its second acquisition in 18 months, following the 2024 purchase of cloud identity firm Rezonate, indicating an aggressive growth strategy focused on consolidating cutting-edge technologies.

The market for AI-native security is heating up, with major players like Palo Alto Networks and CyberArk also rolling out solutions to manage and secure AI agents. However, Silverfort is betting that its unique combination of technologies will provide a decisive edge. The strategy hinges on integrating Fabrix's AI-powered decisioning engine with Silverfort's patented Runtime Access Protection (RAP) technology.

While competitors focus on discovery and posture management, Silverfort's RAP technology is designed to act as an enforcement layer that integrates natively with a company's entire identity infrastructure, both on-premise and in the cloud. By adding Fabrix's "brain," Silverfort aims to not only see every access request but also to autonomously decide whether to allow it in a split second, directly within the execution path.

"We founded Fabrix with a clear vision: making Identity Security easier, faster, and more scalable using an AI-native approach," stated Raz Rotenberg, CEO and Co-Founder of Fabrix. "By joining Silverfort, we can bring this transformation to the largest companies in the world."

Inside the Technology: Brains Meets Brawn

The power of the combined platform lies in its two core components. Silverfort provides the enforcement "brawn," its RAP technology that can apply access policies to resources that were previously unprotectable, such as legacy systems, command-line tools, and IT/OT infrastructure.

Fabrix provides the "brains." Founded in 2025 by a team of AI and security veterans from Run:ai (acquired by Nvidia), Microsoft, and Orca Security, Fabrix developed a sophisticated AI decisioning engine built on an "Identity Knowledge Graph." This graph analyzes a vast array of data—including identity types, permissions, organizational context, and the intent behind an access request—to make intelligent, context-aware decisions.

When a user, machine, or AI agent attempts to access a resource, the request is no longer checked against a static list of rules. Instead, it is evaluated in real-time by the AI engine. The central question it answers is: What is this identity trying to do right now, and based on everything we know, should we allow it? This allows the system to grant Just-In-Time (JIT) access for a specific task and then revoke it, drastically reducing the window of opportunity for attackers.

The expertise of the Fabrix team, including CEO Raz Rotenberg, CTO Ofir Yakovian, and VP of R&D Roee Oz, was a key factor in the acquisition, bringing deep experience from the front lines of AI and cloud security.

The Road Ahead: Integration and Market Impact

Silverfort plans to make the first joint capabilities from the acquisition available to its more than 1,000 enterprise customers, which include many Fortune 100 firms, in the second half of 2026. The integration will bring AI-driven authorization, AI agents to help customers manage the platform, and expanded Just-In-Time access coverage to the Silverfort Identity Security Platform.

While integrating two distinct technology stacks presents a significant technical challenge, the synergy is clear. Silverfort gains a powerful AI engine to automate and elevate its enforcement capabilities, while Fabrix's technology gains immediate access to a massive enterprise market through Silverfort's established customer base and platform.

The move comes as CISOs and business leaders grapple with how to embrace the innovative potential of AI without losing control of their security posture. According to industry analysis, agentic AI is expected to be in 33% of enterprise applications by 2028, a meteoric rise from less than 1% today. This rapid adoption fuels an urgent demand for a new security paradigm. By pioneering an autonomous system that uses AI to secure AI, Silverfort is making a bold claim that it has found the answer, enabling businesses to innovate confidently in an increasingly automated world.