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US Banks Detect Unauthorized AI Agents in Customer Accounts, Report Says

Banks are rewriting terms of service and blocking third-party access as executives warn unauthorized agents could trigger unwanted transfers and call-center contacts.

  • On Thursday, The Axios reported that major banks in America are detecting unauthorized third-party AI agents operating within customer accounts, with some agents attempting independent actions.
  • Customers providing AI assistants with login credentials to manage financial information can violate institutional policies, as these tools access banking systems independently and prompt security concerns.
  • JPMorgan Chief Executive Jamie Dimon warned last week that institutions must implement safeguards, saying, "We're not going to allow just any outside agents." Chief Financial Officer Jeremy Barnum added that JPMorgan is blocking insecure screen scraping methods.
  • Morgan Stanley, Bank of America, and Citigroup are restricting third-party agent access, while Chase has warned customers against sharing usernames and passwords with third parties to contain risks.
  • The Consumer Financial Protection Bureau advises consumers to review how financial applications use data before connecting accounts, cautioning that deleting an app does not necessarily revoke access to financial information.
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According to leading US banks, insiders are blocking access to customer accounts from external programs with artificial intelligence. Thus, the money houses responded to the concern that so-called AI agents could make transactions independently and without instructions from users, said two people familiar with the blockades on Thursday.

·Vienna, Austria
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Large American banks have detected artificial intelligence (AI) agents who access customers' accounts without the authorization of financial institutions, and some of them seem to act independently of user instructions. Unable to always determine whether AI agencies act with the consent of owners, institutions such as JPMorgan, Bank of America and Morgan Stanley have started to restrict their access to banking platforms, Axios reports.

·Bucharest, Romania
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(Seoul = Yonhap News) Reporter Ryu Mi-na = Major U.S. banks are successively detecting instances where unverified artificial intelligence (AI) agents are operating in customer accounts and...

·Seoul, Korea (the Republic of)
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Showmetech broke the news on Monday, October 19, 2026.
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