F5 Acquires CalypsoAI for $180M to Bolster AI Security Offerings

Reviewed byNidhi Govil

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F5, a leading application security company, is set to acquire CalypsoAI, an AI security startup, for $180 million. The acquisition aims to enhance F5's AI security capabilities and integrate CalypsoAI's technology into its Application Delivery and Security Platform.

F5's Strategic Move in AI Security

F5, a Seattle-based security and application delivery giant, has announced its intention to acquire CalypsoAI, a pioneering startup in enterprise AI security, for $180 million

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. This all-cash deal, expected to close by the end of September 2025, marks a significant step in F5's strategy to strengthen its AI security offerings

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Source: CRN

Source: CRN

CalypsoAI: A Rising Star in AI Security

Founded in 2018 with offices in Ireland and New York City, CalypsoAI has quickly established itself as a leader in AI security

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. The company's flagship product, the Inference Platform, provides real-time threat defense, red-teaming at scale, and data security for enterprises deploying AI-related workloads

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. CalypsoAI's innovative approach has attracted significant attention, including $23 million in funding in 2023 and recognition as a top-two finalist at the RSAC 2025 Innovation Sandbox competition

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Source: Silicon Republic

Source: Silicon Republic

Enhancing F5's AI Security Capabilities

The acquisition of CalypsoAI is set to significantly boost F5's AI security offerings

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. F5 plans to integrate CalypsoAI's technology into its Application Delivery and Security Platform (ADSP), creating what it claims will be the most complete solution for securing AI inference

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. This integration will enable F5 to offer:

  1. Real-time protection against AI-specific threats like prompt injection and jailbreaking
  2. Guardrails for detecting and preventing sensitive data leakage and policy violations
  3. Comprehensive visibility and auditability across enterprise AI infrastructures

The Growing Importance of AI Security

François Locoh-Donou, President and CEO of F5, emphasized the critical nature of this acquisition, stating, "AI is redefining enterprise architecture -- and the attack surface companies must defend"

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. As enterprises rapidly embed AI into their products and operations, they face new and sophisticated threats that traditional security measures struggle to address

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Market Impact and Future Prospects

This acquisition reflects the growing demand for specialized AI security solutions. Gartner's recent Market Guide on AI Trust, Risk and Security Management (TRiSM) highlights the need for enterprises to maintain independence from single AI model or hosting providers to ensure scalability, flexibility, and trust

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The deal also underscores F5's commitment to innovation in the rapidly evolving AI security landscape. It follows the company's recent acquisitions of Fletch, an agentic-powered security startup, and MantisNet, a real-time network observability vendor

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Source: SiliconANGLE

Source: SiliconANGLE

As AI continues to reshape enterprise IT and security, the F5-CalypsoAI combination aims to provide businesses with the tools to innovate faster while maintaining robust security measures across their AI infrastructure.

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