Banks are freaking out over AI agents accessing accounts without permission

US banks including Morgan Stanley, Bank of America, JPMorgan, and Wells Fargo are blocking AI agents from accessing accounts due to violations of terms of service requiring human login. These AI agents autonomously acting on accounts pose significant security and compliance challenges, prompting some banks to restrict AI access to read-only mode.

This Wire brief sits within Fusion42's coverage of Fintech, and 5 sources have reported it between 17 Oct 2026 and 24 Oct 2026.