Onyx Security Raises $35M Series A to Secure AI Agents' Operational Risks

Israeli cybersecurity startup Onyx Security has raised $35 million in Series A funding led by Conviction, with participation from existing investors, to develop solutions for securing and managing AI agents' operational risks. The funding round follows the company's $5 million seed round in 2024.

Onyx Security focuses on protecting organizations as they deploy AI agents across their operations. The platform addresses the growing concern of operational risks that emerge when autonomous systems interact with sensitive data, make decisions, and execute tasks without direct human oversight.

The need for such security solutions has intensified as enterprises increasingly integrate AI agents into critical business processes. These agents, while capable of automating complex workflows, introduce new attack surfaces and potential failure modes that traditional security tools weren't designed to handle.

Onyx's approach involves continuous monitoring of AI agent behavior, anomaly detection in decision-making patterns, and safeguards against adversarial manipulation. The platform aims to provide visibility into how AI agents operate, what data they access, and whether their actions align with organizational policies and security requirements.

Conviction, the lead investor, has been actively backing companies at the intersection of AI and security. The firm's involvement signals confidence in Onyx's ability to address what many see as a critical gap in enterprise AI adoption—ensuring that autonomous systems remain trustworthy and secure as they become more prevalent in business operations.

The $35 million Series A will fund product development, team expansion, and market growth as Onyx scales its operations to meet increasing demand from enterprises deploying AI agents at scale. The company plans to enhance its platform's capabilities for real-time risk assessment and automated response to potential security incidents involving AI systems.

This funding round reflects broader market trends where investors are increasingly focused on AI infrastructure and safety tools. As organizations rush to implement AI solutions, the need for specialized security platforms that understand the unique risks of autonomous systems has become a priority for enterprise buyers.

Onyx Security's timing appears strategic, as the market for AI agent security tools is expected to grow significantly over the next several years. The company's success in raising substantial capital suggests strong investor belief in the necessity of purpose-built security solutions for the AI era.

The Israeli startup joins a growing ecosystem of companies addressing AI safety and security, though Onyx distinguishes itself by focusing specifically on operational risks rather than broader AI alignment concerns. This practical approach targets immediate enterprise needs as organizations grapple with securing their AI deployments in production environments.

With the new funding, Onyx Security aims to establish itself as a leader in AI agent security, helping enterprises confidently deploy autonomous systems while maintaining control over their operational risks and security posture.