AI Agent Liability: When AI Assistants Make Unauthorized Purchases, Transfers or Decisions

Status: Investigating claims · Last updated November 2026

If an AI agent made a purchase, sent money, booked travel, traded investments or shared your information without your permission, you may be able to recover your losses. AI “agents” no longer just answer questions. They can browse websites, fill out forms, log into accounts and complete transactions on your behalf. When they get it wrong, or are tricked into doing the wrong thing, real money is at stake.

At Wieand Parker Arreola, we are investigating losses caused by AI agents, automated assistants and company chatbots that gave false information. This page explains how these losses happen, who may be responsible and what rights you have. Call (215) 666-7777 for a free, confidential case review.

What AI Agents Do

AI agents are built into browsers, phones, banking and shopping apps, email and business software. They can:

• Shop and check out using saved payment methods
• Pay bills or move money between accounts
• Book and cancel travel
• Place trades or rebalance investments
• Send emails and messages, and share documents
• Act as a company’s customer service representative

The convenience comes with new risks, because an agent can act quickly and at scale before you notice a problem.

How AI Agents Cause Losses

• Misunderstanding instructions, such as buying the wrong item or quantity or booking nonrefundable travel
• Prompt injection, where hidden text on a website or in an email tricks the agent into following an attacker’s instructions, such as sending money or revealing data
• Hallucinated information that leads to bad decisions
• Security flaws that let others take control of the agent or your connected accounts
• Company chatbots giving false promises about refunds, prices or policies

Early Legal Rulings

Courts are beginning to address who is responsible. In a 2024 case in Canada, a tribunal held Air Canada responsible after its website chatbot gave a customer incorrect information about bereavement fares. It rejected the airline’s argument that the chatbot was responsible for its own statements. The principle that a company is responsible for what its AI tells customers is likely to carry over to U.S. disputes.

Agent developers and the companies that deploy them may also face product liability and negligence claims. These could arise when agents are released without reasonable safeguards against foreseeable attacks like prompt injection.

Your Existing Consumer Rights

Even when AI is involved, traditional protections may apply:

• Credit card disputes. Federal law limits your liability for unauthorized charges and gives you billing-error rights.
• Electronic transfers. Federal rules protect bank customers from many unauthorized electronic fund transfers, if they are reported promptly.
• Consumer protection laws. Pennsylvania’s Unfair Trade Practices and Consumer Protection Law and New Jersey’s Consumer Fraud Act can address deceptive practices, including misleading claims about what an AI product can safely do.

Who May Qualify

These are the main factors we review:

1. A loss caused by an AI agent or chatbot, such as unauthorized purchases, transfers, trades, bookings or data sharing.
2. The amount at stake, including fees, penalties and lost investment value.
3. What you authorized. The permissions you gave the agent and what it actually did.
4. Your attempts to fix it. Disputes filed with your bank or card issuer and the company’s response.
5. Prompt action. Reporting and filing deadlines apply, especially for bank and card disputes, so act and contact a lawyer promptly.

What to Do After an AI Agent Loss

Revoke the agent’s access and change passwords. Report unauthorized charges or transfers to your bank or card issuer immediately, in writing. Save the agent’s activity logs, chat history, confirmation emails and screenshots. Note any website the agent visited before the problem, since that may reveal a prompt injection attack.

AI Agent Liability FAQs

If I turned on the AI agent, is the loss my fault?

Not necessarily. Agreeing to let an agent help you is not the same as authorizing every action it takes, especially if it was manipulated or malfunctioned.

Who do I sue, the AI company or the business?

It depends on the facts. Claims may involve the agent’s developer, the platform that deployed it, the merchant and your financial institution.

Is a company bound by what its chatbot told me?

Increasingly, courts and tribunals are holding companies responsible for their chatbots’ statements.

Contact an AI Agent Liability Lawyer at Wieand Parker Arreola

If an AI agent or chatbot cost you money, contact Wieand Parker Arreola for a free, confidential case review. If we take your case, you pay no fee unless we recover compensation for you. See our AI decisions and algorithmic harm claims, related AI code failure and crypto exchange claims and all of our technology and AI claims.

Call (215) 666-7777 or contact us online for a free case review.

This article is for general information only and is not legal advice. Reading it does not create an attorney-client relationship. Information is current as of November 2026 and may change.