Wells Fargo stock shifts AI-agent risk to customers

Wells Fargo is preparing new online banking terms that will take effect on November 24, 2026. The revised agreement places much of the risk of customer-authorized artificial intelligence agents on the customer, according to a November 3 legal update from Hunton Andrews Kurth.

Section 15 of the new Online Access Agreement covers third-party artificial intelligence agents and agentic AI. The provision defines an AI agent broadly and states that using one is at the customer's own risk. Instructions, actions and transactions initiated by an authorized agent are generally treated as if they were initiated and authorized directly by the customer, without further verification, subject to applicable law or regulation.

Responsibility shifts toward customers

The agreement places monitoring duties on customers. They are responsible for keeping an agent within the authority granted to it and for consequences arising from unintended actions, manipulated inputs or activity beyond that authority, to the extent permitted by law.

Customers must also revoke an agent's authorization properly and promptly, retain evidence of the revocation and provide that evidence to Wells Fargo on request. Until the bank receives notice under the agreement's security provisions, responsibility for the agent's activities continues to the extent allowed by law or regulation.

The bank says it does not monitor, screen or review AI-agent activity under the described terms. It also reserves the right to require registration, change access methods, or limit, suspend or terminate an agent's access. The framework therefore permits the bank to retain control over access while allocating much of the operational risk to users.

Banking risk remains unsettled

Hunton Andrews Kurth places Wells Fargo's approach alongside moves by other large US banks to restrict third-party agents that log in with customer credentials. The legal update identifies security, fraud, deposit flows and uncertainty over customer authorization as central concerns. It also distinguishes credential-based access from read-only sharing through open banking connections.

For investors, the terms signal a contractual response to a fast-changing technology issue rather than a new consumer banking product. The eventual effect on customer adoption, fraud controls and regulatory expectations will determine whether the approach reduces operational exposure or creates new disputes over unauthorized transactions.

Wells Fargo stock traded at 77.76 euros on Lang & Schwarz at 14:10 CET on Thursday, November 12.

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