Metro Bank customer loses £14,000 to fraud that used AI chatbot Claude to drain his account

Key points

• Zoli Rutter, a businessman from Sussex, had £14,244 taken from his Metro Bank account in an unauthorised fraud.
• Fraudsters used the stolen money to buy credits for Claude, an AI chatbot made by the company Anthropic.
• Rutter says he told Metro Bank the money was being taken without his permission, but the withdrawals continued.
• The case raises questions about whether UK banks are doing enough to catch AI-linked fraud in real time.

Zoli Rutter runs a business in Sussex. He is not a careless man with money. Yet somewhere along the way, fraudsters got into his Metro Bank account and quietly emptied it, £14,244 in total, spending every penny on credits for Claude, an AI chatbot (a computer program you can have a text conversation with) made by the San Francisco company Anthropic.

Rutter says he spotted it and warned the bank. The withdrawals kept coming.

What actually happened?

Fraudsters bought credits for Claude using Rutter's account without his knowledge or consent. Credits are essentially prepaid tokens that let users send messages to the chatbot and receive replies. They cost real money, and someone was spending Rutter's.

The Guardian first reported the story, noting that Rutter contacted Metro Bank once he realised unauthorised transactions were going through. He expected the bank to freeze the payments. It did not act quickly enough, and the total loss climbed to over fourteen thousand pounds.

Metro Bank has not publicly confirmed the exact sequence of events.

Should other bank customers be worried?

This specific scam is not widespread, but it points to a broader pattern worth knowing. AI services that sell credits or subscriptions are now common targets for fraudsters testing stolen card details, because small repeat purchases can fly under the radar of basic fraud filters.

If you see any charge you do not recognise, report it to your bank immediately and ask them to block the merchant as well as reverse the payment. A single phone call is not always enough. Follow up in writing, by app message or email, so you have a record.

Banks in the UK are bound by rules from the Payment Systems Regulator that require them to reimburse victims of authorised push payment fraud (where a customer is tricked into sending money themselves). Unauthorised fraud, where money is taken without the customer doing anything, carries even stronger legal protections under the Payment Services Regulations 2017. Rutter's case appears to fall into the second category, which means Metro Bank may be legally required to refund him.

What happens next?

Rutter is pushing for a full refund. If Metro Bank refuses, he can escalate to the Financial Ombudsman Service, a free, independent body that resolves disputes between customers and financial firms in the UK.

His case is a reminder that AI services are now woven into everyday financial fraud, not as the attacker, but as the place where stolen money gets spent. The chatbot itself did nothing wrong. The gap was in the bank's fraud detection.

Check your bank statements today. One unknown charge is worth five minutes of your time.

Common questions

Can the bank be forced to pay Rutter back?

Under UK payment law, banks must generally refund customers for transactions they did not authorise, unless the bank can prove the customer was grossly negligent. Rutter reported the fraud while it was happening, which makes it very hard for the bank to argue that.

Is Claude or Anthropic responsible for the fraud?

No. The AI chatbot was simply where the stolen money was spent. Anthropic, the company behind Claude, was not part of the scam and is not accused of any wrongdoing.

What should I do if I see a charge I don't recognise?

Call your bank, report it as unauthorised, ask them to block the merchant and issue a new card. Then follow up in writing through the bank's app or email so you have a timestamped record of your report.