Palo Alto Networks announced on February 17, 2026, that it has entered a definitive agreement to acquire Koi Security, a pioneer in Agentic Endpoint Security.
The acquisition aims to address a critical security gap created by AI agents and tools that operate with extensive permissions and data access while bypassing traditional security controls.
AI agents have fundamentally transformed endpoint security challenges. Unlike traditional malware that security teams were trained to detect, modern AI agents can actively read, write, and move data across systems.
These tools operate with deep access to sensitive information and unrestricted permissions, creating what industry experts call the “Agentic Endpoint”, an unmanaged attack surface that exists on every endpoint.
Attackers are exploiting vulnerabilities in agent frameworks through authentication bypass and API-based remote code execution techniques. They spoof agent identities and hijack credentials to weaponize trusted automation systems.
The endpoint attack surface now extends beyond traditional executables to include extensions, plugins, packages, scripts, and model artifacts that operate outside centralized security oversight.
Traditional security solutions cannot adequately monitor or control these AI-native tools, creating a dangerous blind spot that requires a new approach: Agentic Endpoint Security.
Following the acquisition’s completion, Koi’s technology will integrate into Palo Alto Networks’ Prisma AIRS AI security platform, broadening coverage across AI-driven operations.
The integration will also enhance Cortex XDR endpoint security, providing visibility into the AI attack surface to improve security policy enforcement and malware prevention.
Lee Klarich, Chief Product & Technology Officer at Palo Alto Networks, emphasised that AI agents function as “ultimate insiders” with full system access but operate outside traditional security controls.
The acquisition will enable the company to deliver the visibility and control necessary for organizations to safely deploy agentic tools.
Koi CEO Amit Assaraf noted that traditional solutions are blind to agentic-first environments, and partnering with Palo Alto Networks will allow the technology to scale to the world’s largest organizations.
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