# @MadisonMills22: Major US banks detect unauthorized third-party AI agents

Source: https://x.com/MadisonMills22/status/2113251043173683683
Kiwi News: https://news.kiwistand.com/stories/MadisonMills22-Major-US-banks-detect-unauthorized-third-party-AI-agents?index=0x6ada2c3217c1483fd8e745b9ddf4d59caabfe456302129ca6e4b05687dbd2e2f8f1f20fd
Submitted by tim on 2026-10-22 UTC, 2 upvotes, 1 comment

## Summary

Major U.S. banks are detecting unauthorized third-party AI agents inside customer accounts, some of which appear to take actions independent of user instructions, according to sources who spoke to Axios. Multiple industry and bank executives told Axios that the findings have alarmed the sector, which is racing to restrict access to its systems because AI is moving faster than institutions can respond. Several banks are preparing for worst-case "day after" scenarios, including how to quickly secure or restore customer accounts, and executives say they struggle to tell human users from AI agents and to determine whether agents are authorized by customers.

## Article

SCOOP: Major U.S. banks are detecting unauthorized third-party AI agents inside customer accounts, including some attempting to take actions that appear to be independent of user instructions, sources told Axios.

The findings have alarmed banking executives, who are racing to restrict access to their systems as AI moves at a velocity faster than financial institutions can respond, multiple industry and bank executives told Axios.

Several banks are now preparing for worst-case and even “day after” scenarios, including how to rapidly secure or restore customer accounts if things go wrong, the people said.

Several bank executives told Axios they're struggling to distinguish between human users and AI agents. One executive said banks also struggle to determine whether agents are authorized by customers or potentially operating without their permission, more akin to rogue agent behavior.

Read my latest for Axios here: https://www.axios.com/2026/10/22/ai-agents-banks-unauthorized-accounts-access

## Comments

**tim**: lol that sounds quite scary I gotta say, and people say the world won’t need more software engineers with this happening?