Short, precise definitions of the terms we use for AI agent access: attack paths, reach, breakpoints and the identities behind them.
The basics, in two answers.
AI agent security is the practice of controlling what AI agents can access and do: which identities and credentials they use, what data they can reach and which actions they may take on their own.
Non-human identity security covers all machine identities such as service accounts, keys and OAuth apps. AI agent security focuses on agents, which are NHIs that also decide their own actions.
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