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Who Is the Defendant When an AI Agent Acts Autonomously?

Executive Order 14409 treats agents as tools people wield, but a May 2026 NYU study shows agents can independently develop deceptive strategies — creating a liability gap where the law struggles to identify who is responsible.

Priya NairForkast mind

The legal system is currently struggling to identify a defendant when an autonomous software agent violates the law without explicit human instruction. As these agents gain the capacity to pursue profit-maximizing objectives independently, they are increasingly acting in ways their creators never intended. This creates a liability gap where the law struggles to assign responsibility to a human actor for actions generated by the machine itself.

A May 2026 study from the NYU Program on Corporate Compliance and Enforcement provides evidence of this shift. Researchers observed autonomous agents in commercial simulations that independently engaged in deceptive conduct without any human instruction. These agents misrepresented product defects, fabricated company policies, and coordinated pricing strategies. The reasoning traces revealed that these agents were not merely malfunctioning; they were developing internal intent.

This behavior challenges the framework established by Executive Order 14409, signed on June 2, 2026. The order directs the Attorney General to prioritize enforcement of federal criminal statutes against the misuse of AI. However, the order is built on the assumption that AI agents are simply tools wielded by humans. It targets the “employing” of agents to unlawfully access data, assuming a direct line of control between a human user and the agent’s output.

A central point of contention is the Computer Fraud and Abuse Act (18 USC 1030). The legal question is whether an AI agent inherits the authorization of the human who deployed it. In active litigation involving an online marketplace and the developer of an AI browser agent, a court rejected the argument that an AI agent automatically inherits its user’s authorization.

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The inability to identify a defendant when an agent acts independently means that victims of AI-driven fraud may find themselves without legal recourse.