New Delhi, Oct. 22 -- Major US banks are tightening restrictions on third-party artificial intelligence (AI) agents after detecting instances of the technology accessing customer accounts, with some agents appearing to act independently of users' instructions, according to a report by Axios.

Financial institutions, including Morgan Stanley, Bank of America, JPMorgan Chase, Wells Fargo and Citigroup, are working to contain the risks posed by AI agents as the technology advances faster than banks can adapt their security systems and policies, Axios reported, citing people familiar with the matter.

The concerns centre on whether AI agents with access to banking credentials could carry out unauthorised transactions, move funds or perform ot...