Fortinet has acquired Virtue AI, a specialist in AI runtime protection, automated validation and security for autonomous systems, in a move to strengthen its Security for AI strategy and extend continuous protection across the AI lifecycle. The acquisition was announced on August 17, 2026. Financial terms were not disclosed; Fortinet described the consideration as immaterial to its business.
Virtue AI’s technology will enhance Fortinet’s AI-Native Security Fabric with continuous agentic AI validation and runtime safeguards. It builds on Fortinet’s existing portfolio, including FortiAIGate, which protects large language models from prompt injections, data leakage, model poisoning and related risks.
Virtue AI brings several focused capabilities:
- Agentic system red-teaming: Testing autonomous agents for weaknesses across more than 50 sandboxed environments and 14 high-stakes domains, including simulated prompt-injection and Model Context Protocol (MCP)-based attacks.
- Agent protection, governance and visibility: Discovery of unsanctioned AI applications and agents, scanning of MCP tools and source code, behaviour monitoring, and blocking of malicious tool calls.
- Continuous AI validation: Ongoing risk assessment across model updates and policy fine-tuning, with audit-ready evidence for security and compliance teams. Testing spans hundreds of attack vectors and more than 1,000 risk categories, including multimodal scenarios.
These tools extend security from development through production runtime, applying real-time guardrails and coordinated enforcement alongside FortiGuard Labs threat intelligence.
Ken Xie, Fortinet’s founder, chairman and chief executive, said: “AI is fundamentally changing enterprise computing, and security must evolve just as quickly. Virtue AI’s technology will advance our vision for continuous AI assurance, helping customers govern and protect AI systems throughout their lifecycle while operating them confidently at enterprise scale.”
As organisations deploy AI applications and autonomous agents, the attack surface expands beyond traditional networks, users, endpoints and cloud workloads to include models, prompts, agents, APIs and tool interactions. Fortinet positions the acquisition as a response to this shift, enabling enterprises to secure AI systems end-to-end rather than only at the model interaction layer.
The deal forms part of Fortinet’s broader push into AI-related security, which has included product launches such as FortiSOC powered by agentic AI, expansions of FortiEndpoint for the AI era, and integrations aimed at securing enterprise AI at scale.
For customers, the combination is intended to provide greater visibility into AI activity, reduce risks from shadow AI and autonomous agents, and support safer adoption of agentic systems in production environments. Integration of Virtue AI’s capabilities into Fortinet’s existing fabric will determine how quickly the enhanced protections become available to the installed base.
In a rapidly evolving cybersecurity landscape shaped by generative and agentic AI, the acquisition underscores the industry’s focus on specialised tools that address novel risks while remaining embedded within broader security platforms.
