Onyx Security vs Bitwarden
Side-by-side comparison of AI visibility scores, market position, and capabilities
Israeli AI agent security startup protecting enterprise AI agent deployments from prompt injection and model compromise. $40M raised (March 2026); Fortune 500 customers; founded 2024; addresses the emerging AI agent attack surface.
About
Onyx Security is an Israeli AI agent security startup founded in 2024 to address the emerging attack surface created by enterprise AI agent deployments. As organizations deploy autonomous AI agents that can take actions, access data, and interact with external services, Onyx identified a critical security gap: existing enterprise security tools were built for human users and traditional software, not for AI agents that operate autonomously and can be manipulated through prompt injection, model compromise, or tool misuse. Onyx was founded to build the security infrastructure layer that makes enterprise AI agents safe to deploy at scale.\n\nOnyx's platform monitors, governs, and protects enterprise AI agent deployments in real time — detecting anomalous agent behavior, enforcing least-privilege access policies, preventing prompt injection attacks, and providing audit trails for agent actions. The product is designed for Fortune 500 enterprises deploying AI agents in business-critical workflows where a compromised or misbehaving agent could exfiltrate data, take unauthorized actions, or cause operational harm. Onyx integrates with leading agentic AI platforms and enterprise security infrastructure without requiring architectural changes to existing agent deployments.\n\nOnyx Security raised $40 million in March 2026 and counts Fortune 500 companies among its early customers — a remarkable milestone for a company less than two years old. The funding and customer traction validate both the urgency of the AI agent security problem and Onyx's technical approach. The company is positioned to lead the AI agent security category as enterprise agentic deployments accelerate globally and CISOs begin to demand purpose-built security controls for AI systems operating in production environments.
Open-source password manager with $100M PSG Series C and 2025 Cybersecurity Breakthrough Award; self-hosted deployment option competing with 1Password and LastPass after post-breach migration accelerated growth.
About
Bitwarden is a Santa Barbara-based open-source password manager and identity security platform — backed with $100 million raised in a Series C led by PSG in September 2022 — providing individuals, teams, and enterprises with a secure, end-to-end encrypted vault for passwords, passkeys, secure notes, and sensitive data with sync across unlimited devices. With 148 employees and winner of the 2025 Cybersecurity Breakthrough Awards Password Management Solution of the Year, Bitwarden differentiates from proprietary password managers through its fully open-source architecture (client, mobile, server, and browser extension codebases all public on GitHub) that enables security audits by the community and self-hosted deployment for organizations with strict data sovereignty requirements.
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