Fraud Shield

Multi-layer adversarial defence engine

AI Filtration Rate

—

Critical Zones

0

Medium Risk Zones

0

Clean Zones

0

6-Signal Adversarial Defence Engine

Mobility Fingerprint

HIGH

30-day GPS mobility fingerprint. Cosine similarity < 0.3 = flag.

Cell Tower Match

VERY HIGH

Cell tower region vs GPS zone cross-check. VPN-proof.

Accelerometer

HIGH

Stillness detection. Real rider = in motion during event.

Platform Activity

HIGH

Checks order accept/decline status during trigger window.

DBSCAN Cluster

VERY HIGH

Temporal cluster detection. Syndicate coordination = spike.

Device Fingerprint

MEDIUM

Linked account graph. Shared devices flag fraud rings.

Zone Risk Heatmap

Fraud Tier Routing

Tier 1

Auto-Approve

< 0.25

All signals clean. UPI payout in 10 min.

Tier 2

Grace Queue

0.25–0.50

2-hour window for signals to recover. Rider not notified.

Tier 3

Manual Review

0.50–0.75

Human reviewer checks. 2–4 hour resolution.

Tier 4

Syndicate Block

> 0.75

DBSCAN cluster or device ring. Full block. Legal notified.