AI incidents · computed from AI incidents register; nothing on this page is written by a model. All ranked answers: /banks/leaders
On the public record as of Oct 24, 2026, 6 of the 141 large banks profiled appear in a register record where the bank's own AI or automated system failed, was withdrawn or caused harm. Ranked by register records, the top 5 are Wells Fargo (2 records), BofA (1 record), Citi (1 record), Barclays (1 record) and Commonwealth Bank (1 record). Wells Fargo's strongest evidence: CFPB: Wells Fargo froze more than 1 million deposit accounts on an automated fraud filter's flags (settled, Dec 20, 2022).
141 banks profiled (120 US, 21 non-US) · 6 with matching evidence · ranked answer, not a comparison
Which of the large banks have had their own AI systems fail or be withdrawn?
| # | Bank | Register records | Latest record | Status | Date | On this site | Sources |
|---|---|---|---|---|---|---|---|
| 1 | Wells Fargo | 2 | CFPB: Wells Fargo froze more than 1 million deposit accounts on an automated fraud filter's flags (settled, Dec 20, 2022) | Settled · severity 4/5 | Dec 20, 2022 | Wells Fargo · AI incidents → | Consumer Financial Protection Bureau ↗ · U.S. Securities and Exchange Commission ↗ |
| 2 | BofA | 1 | Regulators fine Bank of America $225m over automated fraud filter that froze unemployment-benefit cards (settled, Jul 14, 2022) | Settled · severity 4/5 | Jul 14, 2022 | BofA · AI incidents → | Consumer Financial Protection Bureau ↗ |
| 3 | Citi | 1 | Citi trading algorithm sells $1.4bn of European stocks after an input error; UK and German fines (regulator finding, May 2, 2022) | Regulator finding · severity 4/5 | May 2, 2022 | Citi · AI incidents → | Financial Conduct Authority ↗ |
| 4 | Barclays | 1 | Barclays' automated programme wrongly removed 5,141 live mortgage charges from the Land Registry (resolved, Jan 1, 2023) | Resolved · severity 3/5 | Oct 23, 2023 | Barclays · AI incidents → | High Court of England and Wales (The National Archives, Find Case Law) ↗ |
| 5 | Commonwealth Bank | 1 | Commonwealth Bank reverses 45 job cuts it attributed to an AI voice bot (resolved, Jul 29, 2025) | Resolved · severity 2/5 | Jul 29, 2025 | Commonwealth Bank · AI incidents → | ABC News ↗ |
| 6 | NatWest | 1 | Ombudsman: NatWest's chatbot failed a disabled customer and never logged his complaint (resolved, Sep 25, 2023) | Resolved · severity 2/5 | Jun 5, 2024 | NatWest · AI incidents → | Financial Ombudsman Service ↗ |
Each row quotes one record from AI incidents register; the “On this site” link opens the bank's own page or sub-page with every source. Banks absent from the table have nothing matching on the record this site holds.
How is this ranked?
Data: the AI incidents at banks register (/ai-incidents): dated, sourced records of AI failures, AI used against banks and governance findings, each with a status and severity.
Rule: Records whose AI role is "own AI". Score = records; ties by severity.
Counts: 6 of 141 profiled banks qualify; 7 distinct sources cited in the table. Data checked 2026-10-24; ranking template updated 2026-10-30.
What are the caveats?
A record is a publicly reported event with the status the sources support (reported, bank-confirmed, regulator finding, court filing, settled, resolved or disputed); it is not a finding of fault. Banks absent from the table have no record in the register, which is not evidence that nothing happened.
Banks absent from the table have nothing matching on the record this site holds, which is not evidence that they do nothing. Each row links the bank's own page, where every entry carries its sources.
Which bank ranks first?
Wells Fargo leads with 2 records: CFPB: Wells Fargo froze more than 1 million deposit accounts on an automated fraud filter's flags (settled, Dec 20, 2022). BofA is second with 1.
How many large banks had their own AI system fail or be withdrawn?
6 of the 141 profiled banks (120 US, 21 non-US groups). Among those listed, 3 are US banks and 3 non-US groups.
What counts, and what does not?
Records whose AI role is "own AI". Score = records; ties by severity. Source: the AI incidents at banks register (/ai-incidents): dated, sourced records of AI failures, AI used against banks and governance findings, each with a status and severity.
Is this a measure of capability?
No. Every row is a sourced fact on the public record: what the bank, a regulator, a filing or an independent outlet has put on the record. The page does not rate how well anything works.
When was this checked, and how often does it update?
The data behind the table was last checked on 2026-10-24 (AI incidents register). The page recomputes whenever that dataset changes and is republished with the site; it is never edited by hand.
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