Acquisitions: Cisco + Astrix Security, Silverfort + Fabrix Security

Plus a round up of Identity Threat Intelligence updates

May 05, 2026

Cisco to Acquire Astrix Security

Cisco this week announced they are to acquire NHI startup Astrix Security. Traditional security models focus on human users, but modern systems rely heavily on AI agents and non-human identities, which often operate with excessive privileges and limited oversight.

What will Astrix bring to Cisco? Astrix provides capabilities to discover and map AI agents and their activities, govern access and lifecycle of non-human identities, detect and respond to threats in real time and manage secrets (credentials, tokens) centrally.

This will impact Cisco’s strategic vision in a few ways. They aim to extend their Zero Trust security model to the “agentic workforce”—ensuring AI agents are continuously verified, monitored, and controlled, not implicitly trusted.

The Astrix stack will be integrated into Cisco’s security ecosystem, including:

Identity Intelligence (for visibility and context) (previous Oort acquisition)
Secure Access and Duo (for access control and authentication)

“Joining Cisco means Astrix now has the scale, the reach, and the platform to bring agentic and NHI security to organizations worldwide. Astrix’s capabilities will be integrated across the Cisco Security platform — including Cisco Identity Intelligence, Secure Access, Duo, and Splunk — to deliver end-to-end discovery, governance, and threat detection for every agentic and non-human identity and AI agent. Cisco’s unmatched visibility across identity, network, application, and infrastructure layers — combined with Astrix’s deep NHI and agentic security capabilities — creates an opportunity to protect enterprises at a level that simply wasn’t possible before.” - Alon Jackson CEO Astrix Security

Silverfort to Acquire Fabrix

Silverfort recently announced it has acquired Fabrix Security, a startup focused on AI-driven identity security. Financial terms were not disclosed. The acquisition aims to create an autonomous identity security platform that can make and enforce access decisions in real time—something traditional, rule-based systems struggle to do at scale.

Silverfort has long been developing a range of identity security capabilities and acquired Rezonate in 2024 to expand ITDR functionality to cloud systems.

So what will Fabrix add? Fabrix adds an AI-driven decisioning engine and identity knowledge graph Together, they enable dynamic, context-aware decisions about whether an identity (human, machine, or AI agent) should access a resource at any moment. The rise of non-human identities and AI agents is overwhelming static access control models. This combined platform is designed to handle access decisions continuously and autonomously, at the speed required in modern environments.

“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.”