LEDGER AI

Enterprise Fraud Intelligence

Federated Learning FHE Encrypted Zero Trust
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Compliant with EU AI Act 2025 & GDPR β€’ RBAC Enabled

GLOBAL ALERT: Phishing campaign targeting financial controllers  |  GNN SYNC: 4,201 new shell company nodes added  |  OCR MODEL: Vision Transformers processing physical receipts  |  FEDERATED: Round #847 aggregation β€” Ξ΅=0.5 differential privacy  |  FHE VAULT: CKKS scheme active β€” encrypted ledger processing  |  XAI: SHAP explanations for 12 flagged transactions

Threat Assessment Hub

GNN + Reinforcement Learning anomaly detection

XAI FHE EU AI ACT
Total Scanned
0
transactions
Anomalies
0
flagged
AI Accuracy
97.3
F1-score
FL Rounds
847
federated

Anomaly Cluster Visualization

SEABORN

Awaiting Matplotlib/Seaborn payload...

XAI Feature Attribution

SHAP

Shapley values β€” global model importance

Z-Score Deviation
0.85
Split Invoice
0.72
Missing Receipt
0.64
Network Centrality
0.58
Temporal Anomaly
0.45
Vendor Risk
0.39

EU AI Act β€” All decisions traceable via SHAP/LIME

Flagged Transactions

ENCRYPTED
TXN IDVendorAmountAI ConfidenceXAI ReasonAction
Upload JSON to run GNN + OCR analysis

Federated Learning Command Center

IEEE FinGraphFL β€” Privacy-preserving collaborative AI

Active Nodes
5
banks
Privacy Budget
Ξ΅=0.5
RΓ©nyi DP
Global F1
97.3%
post-aggregation

Global Node Sync

ROUND #847
πŸ‡ΊπŸ‡Έ New York β€” JPMorganSYNCED
πŸ‡¬πŸ‡§ London β€” HSBCSYNCED
πŸ‡―πŸ‡΅ Tokyo β€” MitsubishiSYNCING 78%
πŸ‡ΈπŸ‡¬ Singapore β€” DBSSYNCING 52%
πŸ‡©πŸ‡ͺ Frankfurt β€” Deutsche BankPENDING

Secure Aggregation Protocol

FedAvg + DIFFERENTIAL PRIVACY
N1
N2
N3
N4
N5
AGGREGATOR
Encryption

CKKS Lattice

Method

Secure FedAvg

Privacy

RΓ©nyi DP Ξ΅=0.5

Model

FraudGNN-RL

Transaction Network Graph

TSSGC β€” Temporal-Spatial-Semantic Graph Convolution

GNN ENC
Employee Vendor Flagged
Nodes
4,201
Edges
12,847
Fraud Rings
3
Density
0.073

Audit Session History

DateRows ScannedAnomaliesFL RoundStatus
Oct 12, 202610,0004#845Resolved
Oct 05, 20268,4501#839Resolved
Sep 28, 202612,2007#831Resolved
Sep 20, 20269,1002#824Under Review

Subscription & Billing

Analyst Tier

$800 /mo

  • 5,000 txns/month
  • Basic GNN Scan
  • No FL
  • No FHE
CURRENT

Enterprise SOC

$4,500 /mo

  • Unlimited GNN
  • OCR Verification
  • Firebase Sync
  • FL (5 Nodes)
  • FHE Processing

Quantum Shield

$12,000 /mo

  • Everything in Enterprise
  • Quantum Graph Learning
  • GAN Adversarial Sims
  • Unlimited FL Nodes

Support & Documentation

β–Έ How does OCR Verification work?

Cross-references ledger amounts against scanned PDF receipts using Vision Transformers (ViT) for pixel-level manipulation detection.

β–Έ What are Graph Neural Networks (GNNs)?

FraudGNN-RL analyzes entire payment networks as graphs. If Employee A β†’ Vendor B β†’ Employee C, the GNN flags the shell-company ring. RL dynamically adjusts thresholds.

β–Έ How does Federated Learning protect data?

FinGraphFL trains models across bank nodes without sharing raw data. Only encrypted gradients are exchanged via Secure FedAvg with RΓ©nyi DP (Ξ΅=0.5).

β–Έ What is Fully Homomorphic Encryption?

FHE (CKKS lattice) allows AI to compute on encrypted data. Your ledger is never decrypted during analysis β€” the gold standard of Data-in-Use protection.

β–Έ XAI Audit Trail & EU AI Act compliance?

SHAP/LIME feature attributions on every flagged transaction. Satisfies EU AI Act 2025 & GDPR Article 22 right to explanation. Full audit-by-design architecture.

ADMIN: Global Administrator Console Active  |  FIRESTORE: Real-time sync β€” 0ms latency  |  IAM: 5 active analyst sessions  |  METRICS: $2.4M fraud prevented YTD  |  RBAC: Zero Trust role enforcement active

User Access Database

Identity & Access Management β€” Firebase Firestore CRUD

RBAC ENFORCED

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Active Directory

0 users
NameEmailRoleDepartmentStatusRegisteredAction
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Annual Report & Analytics

System-wide fraud prevention metrics β€” FY 2026

Total Audits
156
this year
Anomalies Prevented
1,247
blocked
Revenue Protected
$2.4M
saved
System Uptime
99.97%
availability

Fraud Category Breakdown

Monthly Anomaly Trend

Analyst Satisfaction & Feedback

Internal survey and tool adoption metrics

Avg Rating
4.7/5
β˜…β˜…β˜…β˜…β˜…
Total Reviews
89
analyst submissions
Avg Response Time
2.1s
AI processing

Recent Feedback

Sarah Chen β€” Senior Analystβ˜…β˜…β˜…β˜…β˜…

"The XAI radar chart makes it incredibly easy to explain AI decisions to audit committees. Game changer for compliance."

Oct 15, 2026
Marcus Webb β€” Audit Managerβ˜…β˜…β˜…β˜…β˜…

"Federated Learning sync across our bank nodes is seamless. Would love to see faster aggregation rounds in future updates."

Oct 10, 2026
Priya Sharma β€” Field Analystβ˜…β˜…β˜…β˜…β˜…

"Caught a $45K split invoice scheme that our manual audit missed for 3 months. The GNN network view is phenomenal."

Oct 5, 2026
James O'Brien β€” Compliance Officerβ˜…β˜…β˜…β˜…β˜…

"EU AI Act compliance was our biggest concern. The SHAP audit trail feature eliminated months of documentation work."

Sep 28, 2026

System Event Logs

Real-time infrastructure monitoring

TimestampEventSeveritySource
2026-10-15 14:32:01Federated round #847 aggregation completeINFOFL Engine
2026-10-15 14:30:45User admin@kpmg.com authenticated via RBACINFOAuth Service
2026-10-15 14:28:12FHE vault encryption key rotated (CKKS)WARNINGCrypto Engine
2026-10-15 14:25:00GNN detected potential fraud ring (3 entities)CRITICALGNN Engine
2026-10-15 14:20:33Firestore write: audit_history document addedINFODatabase
2026-10-15 14:15:00XAI engine generated 12 SHAP explanationsINFOXAI Engine
2026-10-15 14:10:22OCR Vision Transformer processed 47 receiptsINFOOCR Service
2026-10-15 14:05:01Tokyo node sync stalled β€” retrying connectionWARNINGFL Engine