Palo Alto Networks Acquires AI Gateway Startup Portkey to Bolster AI Agent Security
As enterprises shift from chatbots to AI agents capable of carrying out tasks autonomously, risks such as unauthorized actions, data leaks and runaway costs are rising in tandem. U.S. cybersecurity company Palo Alto Networks therefore targeted AI gateway provider Portkey, aiming to integrate model routing, access governance, token usage monitoring and runtime protection into Prisma AIRS to strengthen security controls after LLM deployment.
Palo Alto Networks signed a definitive acquisition agreement on April 30, 2026, and completed the transaction on May 29. The total consideration reported to the U.S. Securities and Exchange Commission was $140 million, payable in cash and replacement awards and subject to adjustment. Portkey will become the core AI Gateway for Prisma AIRS, providing centralized monitoring, orchestration and governance of enterprise AI agents and their interactions with models.
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The history behind this eventPalo Alto Networks Acquires Koi to Bolster AI Agent Endpoint Security
Generative AI agents can autonomously read and write data, call APIs and execute code, but they often operate outside the reach of traditional endpoint detection and response systems, creating a new endpoint attack surface. Cybersecurity startup Koi, founded in 2024, focuses on managing risks from agents, plugins and scripts. Its technology can help close visibility and control gaps as enterprises deploy AI at scale.
Palo Alto Networks announced on February 17, 2026, that it had signed an acquisition agreement and completed the transaction on April 14. The total purchase price was $231 million, paid almost entirely in cash. Koi’s technology will be integrated into Prisma AIRS and will add a module to Cortex XDR for identifying and remediating AI software risks. Koi’s products will also continue to be offered separately.
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