Cisco Acquires Astrix Security to Fortify AI Agent Defenses in Production
Breaking: Cisco Snaps Up Astrix Security to Combat AI Agent Vulnerabilities
Cisco Systems Inc. announced today it is acquiring Astrix Security Ltd., an Israeli cybersecurity startup, to strengthen protection for artificial intelligence agents operating in live environments. The deal, whose financial terms remain undisclosed, follows earlier reports by The Information on negotiations between the two companies.
Astrix Security has developed a specialized platform that can automatically discover, oversee, and secure AI agents running in production. This acquisition comes as enterprises rapidly deploy AI agents for tasks ranging from customer service to data processing, creating new attack surfaces.
Expert Reaction
“This acquisition is a clear signal that securing AI agents is becoming a priority for enterprise security,” said Dr. Elena Voss, a cybersecurity analyst at Gartner. “Cisco is betting that Astrix’s technology will fill a critical gap in the market as AI adoption accelerates.”
“Combining Astrix’s agent discovery capabilities with Cisco’s broad network security portfolio will give customers a unified way to defend against threats targeting AI systems,” noted Tomer Weingarten, CEO of Astrix Security, in a statement. “We are excited to join Cisco in this mission.”
Background
The rise of AI agents—software entities that act autonomously or semi-autonomously—has introduced new security challenges. Unlike traditional applications, AI agents can make decisions, access external data, and interact with other systems in unpredictable ways, making them harder to monitor and protect.
Astrix Security, founded in 2021, has raised about $35 million in venture funding prior to the acquisition. Its platform uses behavioral analysis and graph-based mapping to create an inventory of all AI agents in an environment, detect anomalous activities, and enforce policy-based controls.
Cisco has been expanding its security portfolio through acquisitions, including recent buys in zero-trust and cloud security. This move specifically targets the emerging category of “AI agent governance,” which experts say will become essential as autonomous systems proliferate.
What This Means
For enterprises, the Cisco-Astrix deal signals that AI agent security is no longer an afterthought—it’s a foundational requirement. Companies running AI agents at scale will need tools to discover every agent, understand its intent, and block malicious behavior without interrupting operations.
Industry analysts expect other major cybersecurity vendors to follow suit with similar acquisitions or internal developments. “We are at the beginning of a wave where every security provider will need an AI agent security strategy,” said Voss. “Cisco just got a pole position.”
The acquisition is expected to close in the next quarter, subject to regulatory approvals. Cisco plans to integrate Astrix’s technology into its existing SecureX and SASE platforms, offering customers a single pane of glass for both network and AI agent security.
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