F5 to Acquire CalypsoAI for Advanced AI Security Capabilities

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NEWS BRIEF

F5, a software company that improves application speed and security, today announced its plans to acquire CalypsoAI, a provider of adaptive artificial intelligence (AI) security capabilities. CalypsoAI's technology will be integrated into the F5 Application Delivery and Security Platform (ADSP), F5 said.

Founded in 2018, CalypsoAI focuses on real-time protection against threats targeting AI applications and models, such as prompt injection and jailbreaking. The platform brings threat defense, red teaming at scale, and data security to businesses preparing to launch or adopt generative and agentic AI. CalypsoAI came in second place at RSAC Conference's Innovation Sandbox earlier this year as a company that protects models and agents with prompt firewalls.

By integrating CalypsoAI features into ADSP, F5 hopes to build modern firewalls and point solutions that can secure AI models, agents, and data flows. Traditional options "can't keep up," said François Locoh-Donou, president and CEO of F5, in a statement.

"AI is redefining enterprise architecture — and the attack surface companies must defend," he said. "The addition of CalypsoAI will give enterprises the confidence to innovate faster and better protect critical data as they rely on F5 to deliver and secure apps, APIs, and AI models across their environment."

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F5 plans on helping enterprises retain independence from AI models or hosting providers by using Calypso AI's adaptive AI security capabilities — including adversarial threat protection, data security, and unified visibility and governance — to ensure flexibility, cost control and trust, and more as the AI market continues to change rapidly.

F5 will acquire all issued and outstanding shares of CalypsoAI in a transaction valued at $180 million. Subject to customary closing conditions, the acquisition is expected to close in F5's fourth fiscal year 2025, which ends Sept. 30.