Silverfort acquires Fabrix Security to bring AI decision-making to runtime access control

Unified identity security company Silverfort Inc. today announced that it has acquired Fabrix Security Ltd., an artificial intelligence-native identity security company, for an undisclosed price.

Founded in 2024, Fabrix offers an AI-native identity security platform aimed at enterprise identity and access management teams. The company’s offering is designed to help identity and access management teams make faster and more accurate access decisions across both human and nonhuman identities, including service accounts, application programming interface keys, bots and AI agents.

Fabrix’s platform runs an identity knowledge graph that analyzes access activity, organizational context and intent, paired with AI agents that handle authorization decisions, just-in-time access requests and full identity lifecycle management. The approach is intended to replace the manual, rules-based reviews that have traditionally governed enterprise access control with continuous, context-aware decisioning.

The company says the technology addresses the surge of agentic and machine identities that are now outpacing what legacy identity governance and administration tools can manage. The idea is that rather than relying on access rules written at administration time, Fabrix evaluates each access request at runtime, using AI to weigh factors such as identity, permissions and intent.

Silverfort plans to combine Fabrix’s identity-centric AI decisioning engine with its Runtime Access Protection technology to allow enterprises to adopt agentic AI and scale their business without losing control.

“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,” said Silverfort co-founder and Chief Executive Hed Kovetz. “Fabrix’s innovative technology and the team’s track record across AI, security and identity bring the expertise needed to create the new standard for Identity Security in the AI era.”

According to Silverfort, its rich identity security data and runtime enforcement capabilities, together with Fabrix’s identity knowledge graph and real-time AI-driven authorization decisions, will allow organizations to answer the question, “What is this identity trying to do and should we allow it?”

Silverfort argues that access decisions must happen in a split second, with enforcement embedded directly in the execution path. Whenever a user, machine or AI agent is trying to access anything, the request is evaluated at runtime using AI and a context graph that includes data about identities, permissions and intent.

Coming into its acquisition, Fabrix had raised $8 million in venture capital funding from investors including Norwest Venture Partners LLP, ToDay Ventures and Jibe Ventures, as well as from founders and executives at Google, Palo Alto Networks Inc., Cyera Ltd., Microsoft Corp., Tenable Holdings Inc. and Nvidia Corp.

Photo: Fabrix Security