# Western Alliance Bancorporation: Fraud and credit AI

Source: https://www.bankingnewsai.com/banks/western-alliance/fraud-and-credit-ai
Last updated: Oct 16, 2026

*Part of the [Western Alliance Bancorporation AI strategy profile](https://www.bankingnewsai.com/banks/western-alliance).*

## How does Western Alliance use AI for fraud detection and credit?

Western Alliance's most concrete AI is fraud screening in Digital Disbursements, the class-action payments subsidiary it bought in 2022 and runs inside its Juris Banking Group. After claims with significant indicia of fraud rose from 421,584 in 2021 to 80,879,604 in 2023, Digital Disbursements launched Real-Time Fraud Screening in June 2023 and, in early 2024, built the Triangle of Fraud Protection with ClaimScore, which sells AI-based claim validation, and settlement administrators. Its screening prevented more than 723 million fraudulent claims in 2024; the full Triangle identified and prevented more than 800 million and averted well over $100 million of payouts for under $100,000 of investment, and won American Banker's Innovation of the Year in the Cybersecurity and Fraud category in May 2025. Separately, the bank feeds structured logs into machine-learning models and LLMs to find indicators of compromise, which Carl Eberling said cut incident response from days to minutes. On credit, AI is narrower and newer: the May 2026 investor day lists credit agreement review and verification and a lending lifecycle redesign projected to cut cycle time 25%; no AI credit-decisioning model has been disclosed. ([Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2024-04/2024-digital-payments-research-report.pdf), [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2025-04/2025-digital-payments-research-report.pdf), [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud), [Western Alliance Bancorporation (Business Wire)](https://investors.westernalliancebancorporation.com/News-and-Presentations/news/news-details/2025/Western-Alliance-Banks-and-Digital-Disbursements-Triangle-of-Fraud-Protection-Named-as-Innovation-of-the-Year-by-American-Banker/default.aspx), [American Banker](https://americanbanker.com/news/how-truist-and-western-alliance-deploy-ai-to-fight-fraud), [Western Alliance Bancorporation (SEC filings)](https://www.sec.gov/Archives/edgar/data/1212545/000162828026033850/wal_investordayx2026xfin.htm))

## How did Western Alliance build its class-action fraud screening?

From Digital Disbursements' annual reports, the bank's release and American Banker's reporting. Digital Disbursements is a subsidiary of Western Alliance Bank.

| Step | What happened | Date | Sources |
| --- | --- | --- | --- |
| Acquisition | Francesca Castagnola, senior managing director of the Juris Banking Group, led the purchase of Digital Disbursements | 2022 | [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud) |
| First fraud tools | When fraudulent claims grew by more than 400% in 2022, Digital Disbursements developed enhanced fraud tools to help administrators make eligibility decisions | 2022 | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2025-04/2025-digital-payments-research-report.pdf) |
| Fraud scoring model | Dozens of indicia of fraud identified across more than 200 million digital and check payment selections, 'weighted differently in Digital Disbursements' fraud scoring model' | April 2024 report | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2024-04/2024-digital-payments-research-report.pdf) |
| Real-Time Fraud Screening | Initial version launched; it detected and prevented more than 26 million fraudulent claims by the end of 2023 | June 2023 | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2025-04/2025-digital-payments-research-report.pdf) |
| Triangle of Fraud Protection | Digital Disbursements, ClaimScore (AI-based claim validation) and settlement administrators combine real-time screening with dashboards open to the judge and both sides' counsel | Early 2024 | [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud) |
| First integrated case | More than 100 million fraudulent claims identified and prevented in one settlement; more than $6 million of payouts averted | June 2024 | [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud) |
| Scale-out | Real-Time Fraud Screening deployed in nearly all of the 558 cases Digital Disbursements was awarded; ClaimScore reviewed more than 60 million claims | 2024 | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2025-04/2025-digital-payments-research-report.pdf) |
| Award | American Banker Innovation of the Year, Cybersecurity and Fraud category, for the 'Anti-Fraud Triangle' developed with ClaimScore | May 19, 2025 | [Western Alliance Bancorporation (Business Wire)](https://investors.westernalliancebancorporation.com/News-and-Presentations/news/news-details/2025/Western-Alliance-Banks-and-Digital-Disbursements-Triangle-of-Fraud-Protection-Named-as-Innovation-of-the-Year-by-American-Banker/default.aspx), [American Banker](https://americanbanker.com/news/innovation-of-the-year-2025-meet-the-honorees) |
| Largest distribution | First round of more than 17 million digital payments in the Facebook Cambridge Analytica privacy settlement, which the CEO called the largest in U.S. history | Q4 2025 (call January 27, 2026) | [Investing.com](https://investing.com/news/transcripts/earnings-call-transcript-western-alliance-beats-q4-2025-expectations-93CH-4468281) |

## What fraud results has Western Alliance reported?

Figures as published by Digital Disbursements, ClaimScore or the bank; none independently audited.

| Metric | Value | Period | Sources |
| --- | --- | --- | --- |
| Claims with significant indicia of fraud | 421,584 (2021); 1,970,381 (2022); 80,879,604 (2023), an increase of more than 19,000% | 2021-2023 | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2024-04/2024-digital-payments-research-report.pdf) |
| Claims with significant indicia of fraud, first decline | From 81 million to 48 million, down more than 40% | 2024 | [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud) |
| Prevented by Digital Disbursements' screening | 723,251,909 vs 26,048,580 the year before | 2024 vs 2023 | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2025-04/2025-digital-payments-research-report.pdf) |
| Prevented by the full Triangle | More than 800 million fraudulent claims; well over $100 million of payouts averted | 2024 | [Western Alliance Bancorporation (Business Wire)](https://investors.westernalliancebancorporation.com/News-and-Presentations/news/news-details/2025/Western-Alliance-Banks-and-Digital-Disbursements-Triangle-of-Fraud-Protection-Named-as-Innovation-of-the-Year-by-American-Banker/default.aspx), [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud) |
| Return on the Triangle | More than $100 million saved for less than $100,000 invested; the first case alone returned more than 5,900% | 2024 | [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud) |
| Fraud types found by ClaimScore | Fake identity 67.06%, synthetic identity 25.59%, duplication 7.36% | 2024 | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2025-04/2025-digital-payments-research-report.pdf) |
| Mass-tort fraud at distribution | More than 50,000 instances detected and prevented | 2024 | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2025-04/2025-digital-payments-research-report.pdf) |
| Hotmail and Outlook addresses | About 39% of all claims submitted, far above those domains' market share; real-time screening can require such claimants to verify with a U.S. mobile number | 2023 | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2024-04/2024-digital-payments-research-report.pdf) |
| Cyber incident response with AI | Reduced 'from days to minutes' | Stated June 2025 | [American Banker](https://americanbanker.com/news/how-truist-and-western-alliance-deploy-ai-to-fight-fraud) |
| Financial-crimes compliance triage | 60-80% faster (internal projection) | Stated May 2026 | [Western Alliance Bancorporation (SEC filings)](https://www.sec.gov/Archives/edgar/data/1212545/000162828026033850/wal_investordayx2026xfin.htm) |

## How does Western Alliance govern its fraud and credit models?

Eberling described a machine-learning log-monitoring program across core systems, call centers, web browsers and mobile devices; analysts query LLMs over structured log data for patterns that deviate from the norm. To manage bias, models are trained on obfuscated production data in secure environments, and new indicators go through standard risk, compliance and legal review; the bank also talks to the Federal Reserve, the OCC and FinCEN about threat vectors. ([American Banker](https://americanbanker.com/news/how-truist-and-western-alliance-deploy-ai-to-fight-fraud))

On the settlement side the stated rule is 'claimant-first': Digital Disbursements founder Jeff Richardson's mantra is that it is better to let 10 bad actors submit a claim than to deny one legitimate class member. ClaimScore's engine gets quarterly upgrades that add data and improve its AI, and its scores and recommendations feed Digital Disbursements' workflows. ([American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud))

Credit AI is at the productivity stage: the investor-day deck lists credit agreement review and verification and a lending lifecycle redesign, and AmeriHome lists AI-enabled bidding among its revenue drivers. The bank has not disclosed an AI model that approves or prices commercial loans, and its 10-K warns that AI must meet laws requiring explanation of the basis for decisions. ([Western Alliance Bancorporation (SEC filings)](https://www.sec.gov/Archives/edgar/data/1212545/000162828026033850/wal_investordayx2026xfin.htm), [Western Alliance Bancorporation (SEC filings)](https://www.sec.gov/Archives/edgar/data/1212545/000162828026010336/wal-20251231.htm))

## What does the Western Alliance profile record on this topic?

| Date | Move | Detail | Sources |
| --- | --- | --- | --- |
| May 12, 2026 | Investor day puts numbers on the AI programme | CIO Sonny Sonnenstein: 150,000+ employee hours saved, $10 million+ productivity value, lending cycle time −25%, financial-crimes triage 60–80% faster; 'AI Program Launch' and a cloud and AI foundation among 2026 technology investments; next steps are to broaden use cases and embed AI in bank offerings. | [Western Alliance Bancorporation (SEC filings)](https://www.sec.gov/Archives/edgar/data/1212545/000162828026033850/wal_investordayx2026xfin.htm) |
| Jun 4, 2025 | How the bank uses AI against fraud | Eberling on LLM queries over log data, obfuscated training sets and review of new indicators. | [American Banker](https://americanbanker.com/news/how-truist-and-western-alliance-deploy-ai-to-fight-fraud) |
| May 23, 2025 | American Banker details the Triangle's 2024 results | More than 800 million fraudulent claims prevented across the full Triangle and well over $100 million of payouts averted for under $100,000 of investment; claims with significant fraud indicia fell from 81 million to 48 million. | [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud) |
| May 6, 2025 | Innovation of the Year for the Triangle of Fraud Protection | American Banker honours the settlement-payments fraud stack. | [American Banker](https://americanbanker.com/news/innovation-of-the-year-2025-meet-the-honorees), [American Banker](https://digital-banking.americanbanker.com/sponsor/western-alliance) |
| Apr 4, 2025 | 723 million fraudulent claims prevented in 2024 | Digital Disbursements' real-time screening and verification, with ClaimScore and administrators' anti-fraud tools. | [Western Alliance Bank](https://westernalliancebancorporation.com/sites/default/files/2025-04/2025-digital-payments-research-report.pdf) |
| Jun 1, 2024 | First integrated Triangle of Fraud Protection case (June 2024) | Digital Disbursements and ClaimScore, which supplies AI-based claim validation, identify and prevent more than 100 million fraudulent claims in one settlement, averting more than $6 million of payouts. The source gives the month, not the day. | [American Banker](https://americanbanker.com/news/western-alliance-co-created-tech-blocks-class-action-fraud) |

## Common questions

### What is Western Alliance's Triangle of Fraud Protection?

A collaboration created in early 2024 between Digital Disbursements, a Western Alliance Bank subsidiary that pays class-action and mass-tort claimants, ClaimScore, which sells AI-based claim validation software, and the settlement administrator on each case. It combines real-time screening with shared dashboards. In 2024 it identified and prevented more than 800 million fraudulent claims, and it won American Banker's 2025 Innovation of the Year in the Cybersecurity and Fraud category.

### How many fraudulent claims did Western Alliance block in 2024?

Digital Disbursements' own Real-Time Fraud Screening prevented 723,251,909 fraudulent claims in 2024, against 26,048,580 in 2023. Counting ClaimScore and administrators' tools, the full Triangle of Fraud Protection identified and prevented more than 800 million, averting well over $100 million of payouts. Claims with significant indicia of fraud fell from 81 million to 48 million, the first decline on record.

### Does Western Alliance use AI for cybersecurity?

Yes. Carl Eberling said in June 2025 that the bank began machine-learning log monitoring about four years earlier and now feeds structured logs into AI models including LLMs to find indicators of compromise, which cut incident response from days to minutes. The 2026 investor day listed cyber threat monitoring among initial AI use cases and 'Protect From AI With AI' on its roadmap.

### Does Western Alliance use AI in lending decisions?

Not in any disclosed credit-decisioning model. The May 2026 investor day lists AI for credit agreement review and verification and a lending lifecycle redesign projected to cut cycle time by 25%, and AmeriHome cites AI-enabled bidding in mortgage pricing. The 10-K risk factor notes AI's limited transparency makes it harder to comply with rules requiring explanation of decisions.

### Who built Western Alliance's fraud screening?

Digital Disbursements, led by founder and CEO Jeff Richardson, built Real-Time Fraud Screening and co-created the Triangle with ClaimScore's Donald Beshada; Bryan Heller of ClaimScore ran the technical integration. Francesca Castagnola of the Juris Banking Group led Western Alliance's 2022 acquisition of Digital Disbursements, and Carl Eberling manages the bank's settlement-administration division, per American Banker in June 2025.
## Deeper on Western Alliance

- [What is Western Alliance's AI strategy?](https://www.bankingnewsai.com/banks/western-alliance/ai-strategy)
- [How does Western Alliance govern AI risk?](https://www.bankingnewsai.com/banks/western-alliance/responsible-ai)


---

Canonical page: https://www.bankingnewsai.com/banks/western-alliance/fraud-and-credit-ai
Part of [BankingNewsAI](https://www.bankingnewsai.com/) — a free daily brief on AI in banking, an AI regulation tracker (42 authorities, 243 documents) and AI-strategy profiles of the 120 largest US banks. Markdown versions of every reference page: append `.md` to the page URL; index at https://www.bankingnewsai.com/llms.txt.