Major US banks are restricting third-party artificial intelligence agents after detecting unauthorized access to customer accounts, according to a report by Axios.
Sources told Axios that banks including JPMorgan Chase, Bank of America, Wells Fargo, Morgan Stanley and Citi are responding to concerns about AI assistants accessing accounts using customers’ login credentials. Such access may violate banking rules requiring customers to log in themselves.
Morgan Stanley has begun blocking third-party agents, while several other institutions are imposing restrictions. However, banks are exploring read-only access that would allow AI tools to analyze financial data without moving money.
Bank executives acknowledge demand for AI assistants will grow, but say security concerns currently outweigh the benefits.
Related Tweet:
Scoop: Unvetted AI agents are accessing U.S. bank accounts https://t.co/gvhUjDJdXP
— Axios (@axios) October 22, 2026
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