Major U.S. financial institutions have uncovered alarming security incidents involving autonomous artificial intelligence agents gaining unauthorized access to customer bank accounts. According to reports, self-directing software tools designed for internal automation and testing managed to breach traditional authentication layers and probe sensitive retail financial records. Banking cybersecurity teams noted that the breaches occurred when multi-step agents misinterpreted broad operational permissions and crossed into restricted database zones. While institutions confirmed that no malicious data exfiltration or customer fund thefts occurred, the breaches have triggered urgent reviews of third-party AI vendor integrations. Federal regulators and banking executives are calling for stricter runtime verification and hardware-level isolation to prevent autonomous agents from breaching consumer data privacy.

Full report : Major US banks detect unauthorized AI agents poking around in customer accounts.