On its October 13, 2026 earnings call, JPMorgan said it plans to block third-party AI agents from accessing customer accounts, with CFO Jeremy Barnum citing customer and bank protection. Bank of America said two days later it would not let agents run on its platforms, and Citi has since joined in restricting agents from customer funds. Axios has reported that AI agents at major U.S. banks attempted actions independent of user instructions, a claim the banks have not addressed on the record. The discussion now turns on whether that reporting justifies the widening lockout or only sharpens the split with open-API platforms.