T519 AML / Fraud

APP Fraud Graph Simulator

Monte Carlo BFS simulation of Authorised Push Payment fraud propagation across payment networks. Models PSR £85k reimbursement cap breach probability, node-level reach risk, and compliance flags for PSR, PSD2, and EBA Fraud Monitoring Guidelines.

🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
EDUCATIONAL: Network topologies are synthetic. Outputs are illustrative decision-support drafts only. PSR reimbursement decisions require qualified legal and compliance review. No real account data should be input.
Simulation Parameters
Synthetic topology only: no real account data
10 – 2,000
0.00 – 1.00 (probability fraud is stopped at each hop)
UK PSR reimbursement cap: default £85,000
Integer: same seed gives same results
Fraud Propagation Verdict
CONTAINED
Topology
-
0.0%
PSR Threshold Breach Probability Probability simulated loss exceeds the PSR £85,000 reimbursement cap
Mean Loss at Risk - average across all paths
Loss P95 - 95th percentile scenario
Mean Detection Hop - avg hops before detection
Paths Simulated - Monte Carlo runs
Detection Rate - per hop
Topology - network type
Compliance Flags
Top-10 Nodes by Reach Probability
AP2 / AML mandate: PSR compliance artifact