Major Banks Block Third-Party AI Agents From Account Access
Three of the largest U.S. banks are drawing a hard line against external AI agents taking actions on customer accounts, citing both security and a potential mass migration of deposits to higher-yield products. The banks are simultaneously building internal AI tools for the same deposit-optimization use case they are blocking externally.
Citigroup, Bank of America, and JPMorgan Chase have each restricted third-party AI agents from logging into customer accounts or executing transactions. JPMorgan permits read-only data sharing through open banking connectors like Plaid but blocks write actions such as sending money or paying bills. Jamie Dimon cited two concerns: the liability that shifts to customers when outside agents act on their behalf, and the risk of thousands of 'rogue agents' operating inside the bank. McKinsey warned that AI agents acting for consumers could move deposits to better-yielding accounts, disintermediating retail banks. JPMorgan, Bank of America, and Wells Fargo together hold $1.6 trillion in non-interest deposits; paying 3% interest on those balances would cost roughly $47 billion annually, close to half their combined annual earnings. While blocking outside agents, JPMorgan launched a targeted internal pilot of its own AI tool, Smart Cash, which predicts cash flow and moves funds to maximize yield.
Citigroup, Bank of America, and JPMorgan Chase blocked third-party AI agents from executing transactions on customer accounts; JPMorgan permits read-only data sharing through Plaid but not write actions like sending money or paying bills.
Jamie Dimon cited liability shifting to customers when outside agents act on their behalf and the risk of 'rogue agents' operating inside the bank. JPMorgan confirmed an internal pilot of Smart Cash, its own AI tool that moves funds to maximize yield.
JPMorgan Chase's prohibition on outside AI agents from direct account access reported
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