A federal appeals court has handed Perplexity a significant win in its legal battle with Amazon, ruling that the e-commerce giant is unlikely to prove that the AI company violated federal anti-hacking laws when its automated shopping agent operated on the platform. The decision marks the first time an appellate court has weighed in on whether artificial intelligence agents can legally act on behalf of human users when navigating websites.
The Ruling and Its Reasoning
The appeals court determined that Amazon faces long odds in establishing that Perplexity ran afoul of the Computer Fraud and Abuse Act, the decades-old federal statute originally designed to combat computer hacking. At the heart of the dispute is Perplexity's AI agent, which can browse, select, and purchase items on a user's behalf, effectively acting as a digital stand-in for the human customer.
The court's skepticism toward Amazon's argument centers on a fundamental question: whether software acting under a user's direction, using that person's own credentials and authorization, can be considered an unauthorized intrusion. If the agent is doing what the user explicitly asked it to do, the legal case for calling it a hack becomes considerably harder to make.
When your AI does the shopping, the law is still figuring out who's really holding the cart.
Why It Matters for AI Agents
The ruling carries weight far beyond the two companies involved. As AI agents grow more capable of performing real-world tasks online—booking travel, making purchases, and managing accounts—the legal framework governing their behavior remains largely untested. This decision offers early guidance on how courts may treat autonomous software that acts with user consent.
For companies building agentic AI products, the outcome is encouraging. It suggests that platforms may struggle to block third-party agents purely on the basis of hacking statutes, provided those agents are operating with legitimate user authorization.
Key takeaways from the case include:
- It is the first appellate-level decision addressing the legality of AI agents acting for users.
- The court found Amazon unlikely to succeed under the Computer Fraud and Abuse Act.
- The outcome could shape how platforms respond to automated shopping tools.
The Broader Battle Ahead
Amazon and Perplexity represent opposing sides of a growing tension between platform operators and the AI firms whose agents want to interact with them. Platforms have strong incentives to control how automated software accesses their systems, citing concerns over security, user exper