Which large banks lead in AI for cybersecurity?

Data as of Oct 21, 2026 · 140 banks profiled · 120 with evidence · 70 sources cited · page updated Oct 23, 2026

Edition: computed from the bank pages as of Oct 21, 2026, methodology at /banks/ai-index/methodology

By depth of AI evidence and then by stage, the large banks leading in AI for cybersecurity are Commonwealth Bank, Community Bank N.A., M&T, Western Alliance and First Citizens: Commonwealth Bank (In-house agentic threat-hunting agents (in production) · AI-powered cyber…; Weekly threat signals processed by cyber defence: over 400 billion…); Community Bank N.A. (Machine learning and generative AI in security operations (in production)); M&T (Agentic AI for cyber and fraud (under review) (pilot)); Western Alliance (ML log monitoring with LLM querying (in production) · AI team defending the…); First Citizens (AI in cybersecurity (in production) · Layered defence aligned to FFIEC and…). 71 of the 140 profiled banks have at least two cyber entries that state AI and are ranked; another 49 have a cyber entry on their page (a programme without AI, a single AI mention or a figure) and are counted but not ranked. Among the ranked banks, 58 describe a cybersecurity use case that states AI or automation (42 in production) and 3 disclose a cyber budget, investment or headcount figure.

Data as of Oct 21, 2026 · 140 banks profiled (120 US, 20 non-US) · 120 with evidence on this topic · 70 sources cited below · ranked answer, not a comparison

Which banks have AI for cybersecurity on the record?

The 30 highest of the 71 banks with at least two cyber entries that state AI (cybersecurity use cases, dated moves on cyber, security operations, threat detection, phishing, fraud rings or deepfakes, or cyber figures, combined). Ranked by depth score, then by the best stage among the AI cyber use cases, then by US AI-index score.

#BankAI index scoreCybersecurity AI (stage)Latest cyber AI moveCyber budget, headcount or figureEvidence · scoreStatusDateSources
1Commonwealth Bankn/aIn-house agentic threat-hunting agents (in production) · AI-powered cyber defence agents and frontier cyber models (rolling out)Banks test OpenAI's cyber model (May 19, 2026)Weekly threat signals processed by cyber defence: over 400 billion (80 million six years earlier) (Mar 17, 2026)1 of 2 AI use cases in production (2 cyber use cases in all) · 2 AI moves · 1 figure · score 9In productionAug 12, 2026The Register ↗ · Commonwealth Bank of Australia ↗ · Australian Financial Review ↗
2Community Bank N.A.41.9Machine learning and generative AI in security operations (in production)2025 10-K: AI and data governance frameworks, AI in security operations (Feb 27, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 5 AI moves · 0 figures · score 8In productionFeb 27, 2026Community Financial System (SEC filings) ↗
3M&T75.3Agentic AI for cyber and fraud (under review) (pilot)Jones: 16,000 employees AI-proficient, LLM experiments in credit (Sep 18, 2026)no cyber budget or headcount disclosed0 of 1 AI use cases in production (1 cyber use case in all) · 6 AI moves · 0 figures · score 8PilotSep 18, 2026Fast Company ↗ · MarketBeat (Yahoo Finance) ↗
4Western Alliance71.8ML log monitoring with LLM querying (in production) · AI team defending the core against AI-driven threats (in production)2025 10-K adds a dedicated AI risk factor (Feb 23, 2026)no cyber budget or headcount disclosed2 of 2 AI use cases in production (2 cyber use cases in all) · 1 AI move · 0 figures · score 7In productionSep 16, 2026American Banker ↗ · Investing.com ↗ · Western Alliance Bancorporation (SEC filings) ↗
5First Citizens67.3AI in cybersecurity (in production) · Layered defence aligned to FFIEC and NIST (in production)Chief Data and Analytics Officer on Copilot and AskFirst (Sep 3, 2026)no cyber budget or headcount disclosed2 of 2 AI use cases in production (2 cyber use cases in all) · 1 AI move · 0 figures · score 7In productionSep 3, 2026First Citizens Bank ↗ · First Citizens Bank ↗
6Wintrust38.2Cybersecurity programme under AI-enhanced threat (in production)Q2 2026 call: 'the early phases of AI' in technology spend (Jul 21, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 4 AI moves · 0 figures · score 7In productionJul 21, 2026Wintrust Financial Corporation (SEC filings) ↗ · Yahoo Finance (Quartr) ↗
7Hancock Whitney37.3AI tools in the security programme (in production) · AI-threat guidance for business clients (in production)Second-quarter 2026 10-Q (Aug 7, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (2 cyber use cases in all) · 4 AI moves · 0 figures · score 7In productionSep 9, 2026Hancock Whitney (SEC filings) ↗ · Hancock Whitney ↗ · Hancock Whitney (SEC filings) ↗
8Stifel Bank6.5AI-enabled cyber threats (in production)Q1 call: cyber is the first priority as frontier models arrive (Apr 22, 2026)Cybersecurity reports to the board's Risk Management Committee: At least four a year (Feb 24, 2026)1 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 1 figure · score 7In productionApr 22, 2026Stifel Financial (SEC filings) ↗ · Yahoo Finance ↗ · Investing.com ↗
9First Financial Bank4.4AI-enabled attack risk under the Cybersecurity ERM Committee (in production)2025 10-K: stand-alone AI risk factor (Feb 19, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 4 AI moves · 0 figures · score 7In productionApr 16, 2026First Financial Bancorp (SEC filings) ↗ · First Financial Bancorp (SEC filings) ↗
10Scotiabankn/aAI-enabled security (rolling out)Q3 2026: expanded platform, higher tech spend, frontier-AI cyber risk (Aug 25, 2026)no cyber budget or headcount disclosed0 of 1 AI use cases in production (1 cyber use case in all) · 5 AI moves · 0 figures · score 7Rolling outAug 25, 2026Scotiabank (The Bank of Nova Scotia) ↗ · Yahoo Finance ↗ · Motley Fool via Yahoo Finance ↗
11HSBC USA81.9no cybersecurity use case describedHSBC USA 10-Q names generative AI as a forward-looking risk (Aug 4, 2026)Engineers using AI coding assistants (group): ≈ 31,000 (30,000 per the CEO); vulnerability patching 10× faster in 12 months (Apr 2, 2026)0 of 0 AI use cases in production (0 cyber use cases in all) · 3 AI moves · 2 figures · score 7Figure disclosedAug 4, 2026HSBC USA Inc. (SEC filing) ↗ · HSBC ↗ · HSBC ↗
12Wells Fargo90.3AI to close cyber vulnerabilities (in production)Cyber chief on AI-enabled social engineering (Sep 29, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 3 AI moves · 0 figures · score 6In productionOct 13, 2026PYMNTS ↗ · Wells Fargo Stories ↗
13Truist84.6AI threat detection and data-exposure mapping (in production)10-Q adds 'AI-driven cyberattacks' to the risk list (Jul 31, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 3 AI moves · 0 figures · score 6In productionJul 31, 2026American Banker ↗ · Truist Financial (SEC filing) ↗ · Truist Financial (SEC filing) ↗
14Webster68.6SOC automation (Splunk SOAR) (in production) · CISO-led cyber and technology risk programme (in production)Automation recognised internally (Jun 10, 2026)Planned 2025 hires / technology and cyber: ≈ 200 / ≈ 25 (Mar 14, 2025)1 of 1 AI use cases in production (2 cyber use cases in all) · 1 AI move · 1 figure · score 6In productionJun 10, 2026Webster Bank ↗ · Webster Financial (SEC filings) ↗ · Banking Dive ↗
15Old National66.0AI-enabled attack risk and client scam guidance (in production)Proxy statement: board oversight of AI and technology (Apr 2, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 3 AI moves · 0 figures · score 6In productionApr 2, 2026Old National Bancorp (SEC filings) ↗ · Old National Bank ↗ · Old National Bancorp (SEC filings) ↗
16BankUnited63.4AI in the cyber-risk programme (in production)Guide to AI-generated phishing (Jun 4, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 3 AI moves · 0 figures · score 6In productionJun 4, 2026SEC EDGAR ↗ · SEC EDGAR ↗ · BankUnited ↗
17Enterprise Bank & Trust34.5Information-security programme with AI named as a threat factor (in production)2025 10-K: AI as technology change and cyber threat (Feb 27, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 3 AI moves · 0 figures · score 6In productionFeb 27, 2026Enterprise Financial Services Corp (SEC filings) ↗
18Barclaysn/aAgentic AI attack-surface risk (in production) · Claude for secure engineering and legacy modernisation (rolling out)CEO warns on Anthropic's Mythos (Apr 17, 2026)no cyber budget or headcount disclosed1 of 2 AI use cases in production (2 cyber use cases in all) · 1 AI move · 0 figures · score 6In productionOct 1, 2026Barclays PLC (SEC 20-F) ↗ · Reuters ↗ · Anthropic ↗
19Citi94.7Frontier-model testing (pilot)Fraser: a 'tsunami of patching' (Sep 20, 2026)no cyber budget or headcount disclosed0 of 1 AI use cases in production (1 cyber use case in all) · 4 AI moves · 0 figures · score 6PilotSep 20, 2026Reuters ↗ · Bloomberg ↗
20BNY89.6Frontier cyber-model testing (pilot)AI named as a factor amplifying payments fraud (Sep 17, 2026)no cyber budget or headcount disclosed0 of 1 AI use cases in production (1 cyber use case in all) · 4 AI moves · 0 figures · score 6PilotOct 1, 2026Axios ↗ · American Banker ↗ · PYMNTS ↗
21BNP Paribasn/aPreparing for AI-driven vulnerability discovery (announced)Q2 2026 call: CEO chairs the Group AI Strategy Committee (Jul 23, 2026)Cybersecurity experts and share of IT budget: Nearly 5,000 experts; around 10% of the IT budget (Oct 5, 2026)0 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 1 figure · score 6AnnouncedOct 5, 2026Reuters ↗ · Investing.com ↗ · BNP Paribas ↗
22Capital One86.6VulnHunter (in production) · Fraudulent remote-worker detection (in production)ASKS Center for generative-AI safety at Illinois (Jun 4, 2025)no cyber budget or headcount disclosed1 of 1 AI use cases in production (2 cyber use cases in all) · 2 AI moves · 0 figures · score 5In productionJul 17, 2026VentureBeat ↗ · American Banker ↗ · Capital One ↗
23First Horizon68.7Defence against AI-enabled scams (in production)CISO on AI-powered cyberscams (Jul 1, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 0 figures · score 5In productionJul 1, 2026First Horizon ↗
24Flagstar65.4AI-aware security layer (in production) · Machine learning in security engineering (announced)no dated cyber AI moveno cyber budget or headcount disclosed1 of 2 AI use cases in production (2 cyber use cases in all) · 0 AI moves · 0 figures · score 5In productionJun 15, 2026Flagstar Bank ↗ · Flagstar Bank ↗
25Busey Bank44.8AI-powered fraud and threat detection (in production)2025 10-K: generative-AI and AI-fraud risk, AI-powered threat detection (Feb 26, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 0 figures · score 5In productionFeb 26, 2026First Busey Corporation (SEC filings) ↗
26Seacoast Bank42.1AI and ML for phishing and email-compromise detection (in production)Q2 2026 10-Q widens its AI risk language (Aug 4, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 0 figures · score 5In productionAug 4, 2026Seacoast Bank ↗ · Seacoast Banking Corporation of Florida (SEC filings) ↗ · Seacoast Banking Corporation of Florida (SEC filings) ↗
27United Community38.8AI cyber-risk review before implementation (in production)2025 10-K: AI as technology, fraud and cyber risk (Feb 17, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 0 figures · score 5In productionFeb 17, 2026United Community Banks (SEC filings) ↗
28Rockland Trust32.1AI-enabled cyber-attack and deep-fake risk governance (in production)2025 10-K: standalone AI risk factor (Feb 27, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 0 figures · score 5In productionFeb 27, 2026Independent Bank Corp. (SEC filings) ↗
29First Commonwealth25.9AI-evolved cyber threats under CISO governance (in production)Proxy statement names AI among board qualifications (Mar 19, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 0 figures · score 5In productionMar 19, 2026First Commonwealth Financial Corporation (SEC filing) ↗ · First Commonwealth Financial Corporation (SEC filing) ↗
30Central Bank24.8AI-enabled attacker risk in cyber programme (in production)Q2 2026 10-Q: AI-related fraud and cyber risks monitored (Aug 14, 2026)no cyber budget or headcount disclosed1 of 1 AI use cases in production (1 cyber use case in all) · 2 AI moves · 0 figures · score 5In productionAug 14, 2026Central Bancompany (SEC filings) ↗ · Central Bancompany (SEC filings) ↗ · Central Bancompany (SEC filings) ↗

Each row quotes the bank's page on this site; the bank link opens the full record with every source. “Not disclosed” means the page records nothing on that point. Banks absent from the table have no evidence on this topic on their page. The AI index score is the bank's score out of 100 on the US AI index; non-US groups are outside that index and show n/a.

Which banks disclose a cyber budget, investment or headcount?

Every bank whose page carries a cyber figure, ranked or not, quoted as reported. 3 banks disclose a budget, investment or headcount; other cyber figures (attack volumes, detection rates) are listed where no budget is given.

BankFigureDate
HSBC USAEngineers using AI coding assistants (group): ≈ 31,000 (30,000 per the CEO); vulnerability patching 10× faster in 12 monthsApr 2, 2026
WebsterPlanned 2025 hires / technology and cyber: ≈ 200 / ≈ 25Mar 14, 2025
East West2026 expense growth guidance (includes AI, cyber and monitoring investment): 7% to 9%Apr 21, 2026
Cathay BankInformation security team continuing education: More than 700 hoursDec 31, 2025
Stifel BankCybersecurity reports to the board's Risk Management Committee: At least four a yearFeb 24, 2026
USAACyberthreats blocked: Nearly 8 billionDec 31, 2025
BNP ParibasCybersecurity experts and share of IT budget: Nearly 5,000 experts; around 10% of the IT budgetOct 5, 2026
Commonwealth BankWeekly threat signals processed by cyber defence: over 400 billion (80 million six years earlier)Mar 17, 2026

How is this ranking computed?

Cybersecurity use cases are split into those whose text states AI, machine learning, agents, models or security automation and those that describe a programme without AI. Depth score = 3 × AI cyber use cases in production + 2 × AI cyber use cases at other stages + 1 per dated timeline move that mentions cyber, security operations, threat detection or intelligence, phishing, fraud rings, deepfakes, SOC or information security and also states AI + 2 per disclosed cyber figure. Programmes without AI add nothing. A bank needs at least two entries that state AI (use cases, moves and figures combined) to be ranked. Order: depth score, then best stage among the AI cyber use cases, then US AI-index score (non-US groups last). Entries that deny AI use, and entries that are guidance, advice or marketing to clients about AI threats rather than the bank's own defence, are not counted as AI.

Cyber budgets and headcount are quoted as the bank states them; a bank that reports only an overall technology budget is not credited with a cyber figure.

What are the caveats?

Banks disclose little about cyber defence for security reasons; a short record here is expected and is not evidence of weak defences.

Moves about AI-enabled threats (deepfake scams, frontier-model cyber risk) count alongside defensive AI because both describe the bank acting on AI in cyber; the move column says which.

How does this differ from the AI index?

The AI index scores AI disclosure across every business line; this page keeps only cybersecurity AI and adds disclosed cyber budgets and headcount. The AI index and its method are on their own page; the technology leaders and generative AI guides are hand-written cross-bank tables with their own sourcing.

Which bank leads in AI for cybersecurity?

Commonwealth Bank of Australia: In-house agentic threat-hunting agents (in production) · AI-powered cyber defence agents and frontier cyber models (rolling out) (score 9).

How many banks use AI for cybersecurity?

71 of the 140 profiled banks have at least two cyber entries that state AI and are ranked; 58 of them describe a cybersecurity use case that states AI or automation and 42 have one in production. 49 more have a cyber entry without enough AI evidence to rank.

Which banks disclose their cybersecurity budget?

Webster (Planned 2025 hires / technology and cyber: ≈ 200 / ≈ 25), BNP Paribas (Cybersecurity experts and share of IT budget: Nearly 5,000 experts…) and East West (2026 expense growth guidance (includes AI, cyber and monitoring…).

Which banks are acting on deepfakes and AI-enabled phishing?

Banks with a dated deepfake or phishing entry: Community Bank N.A., Wintrust, Hancock Whitney, First Financial Bank, Old National and BankUnited.

Why do so few banks disclose cyber AI in detail?

Describing defensive systems helps attackers, so banks name them rarely and in general terms; the record leans on 10-K risk factors, executive remarks and industry programmes rather than system names.

When any of these banks moves on AI, you'll read it the next morning.

when one of the banks we cover moves on AI, it is in the next morning's brief · six sourced stories · 7 am PT · free

plus every regulation, bank and agent page update, the morning after · leave any morning