Competitive comparison
Understand AI usage and apply intelligent controls
Harmonic Security
Harmonic Security uses its own sensors to read and classify each interaction, including its context and the human or agent intent.
Security teams can understand exactly how AI is used down to the task level, then use Harmonic’s intelligent controls to guide users and agents at the point of interaction wherever they use AI.
Onyx Security
Onyx uses third-party sensors, primarily EDR and network security, to discover AI usage. It offers a central gateway for inline control of AI interactions passed through it.
Relying on third-party tools for discovery is an efficient way to get started, but these tools were not built for the AI era. They cannot provide granular insight into how AI is actually used or deliver context-aware controls at the point of interaction.
Side by side
Based on publicly available information, August 2026
FAQ
Harmonic uses its own endpoint agent and browser extension to understand and protect AI usage wherever employees work. Onyx Security relies on integrations with EDR and network security to discover AI usage, and applies controls when AI is used through its central gateway.
Harmonic Security provides deep insight into how AI is actually used at the task level, rather than only discovering whether certain tools are used. It can also apply context-aware controls natively in the tools employees already use.
Knowing that an employee used an AI application does not explain what work they were doing or whether it created real risk. Harmonic groups related interactions into coherent tasks and maps them to organization-specific use cases, while evaluating intent and sensitive-data context. This lets security teams apply controls based on how tools are used and gives leadership the intelligence they need to invest efficiently.
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