39 fraud signals. One score you can trust.
ShieldCommerce combines Bayesian probability math with enterprise fraud intelligence to score every order in real-time.
Signal categories
Geographic
6 signals- IP ↔ billing country mismatch
- IP ↔ shipping country mismatch
- High-risk country detection
- VPN / proxy / TOR detection
- Datacenter IP identification
- Residential proxy detection
- Disposable email domain
- Free email + high value order
- Young email domain
- Email fraud score (IPQS)
- Email in data breach
- Spam trap / honeypot
IP & Connection
5 signals- IP fraud score (IPQS)
- IP blocklist (FireHOL)
- Recent abuse detected
- Bot activity detection
- Connection type analysis
Velocity
3 signals- Orders per email (daily/weekly)
- Orders per IP (daily/weekly)
- Rapid order placement
Payment
5 signals- Prepaid card detection
- Card BIN country mismatch
- Failed payment attempts
- Transaction risk scoring (IPQS)
- Fraudulent behavior patterns
Order Patterns
6 signals- Guest checkout
- Express shipping + high risk
- Order at unusual hours
- Bulk single-item orders
- High-risk product category
- Coupon abuse detection
Under the hood
Bayesian Likelihood-Ratio Scoring
Unlike point-based systems that assign arbitrary weights, ShieldCommerce uses calibrated likelihood ratios for every signal. Each signal's LR represents how much more likely the evidence is under fraud vs legitimate behavior.
P(fraud | evidence) = prior_odds × LR₁ × LR₂ × ... × LRₙ → probability- A score of 80 genuinely means 80% probability of fraud
- Clean signals actively REDUCE risk (LR < 1)
- Correlated signals grouped to prevent score inflation
- Prior odds × all LRs → posterior probability (Bayes theorem)
- All 52 likelihood ratios in a single config file — tunable without code changes
Customer Risk Profiles
Build a persistent risk profile for every customer across all their orders. See timeline, signal heatmap, geographic patterns, and cross-merchant intelligence.
- Aggregated risk across all orders from the same customer
- Signal heatmap showing which signals fire most often
- Geographic consistency tracking
- Order velocity patterns over time
- Direct link from any order to the customer profile
CE 3.0 Evidence Collection
Visa Compelling Evidence 3.0 requires specific data points to win disputes. ShieldCommerce collects this evidence automatically from the moment you install — no manual work.
- Device fingerprinting via Shopify Theme App Extension
- IP address and geolocation data
- Transaction pattern evidence
- Customer identity verification
- Structured evidence ready for dispute submission
IPQS Integration (Growth+ Plans)
IPQualityScore provides enterprise-grade fraud intelligence. ShieldCommerce integrates three IPQS APIs to enrich every order with signals that free tools can't provide.
- IP Reputation: fraud score, proxy, VPN, TOR, bot, recent abuse
- Transaction Scoring: address validation, leaked data, prepaid card, fraudulent behavior
- Email Validation: email fraud score, domain age, honeypot, spam trap, data breach
- Smart routing: IPQS only called for ambiguous orders (60-70% call reduction)
- Tier-aware: Free signals first, IPQS only for Growth+ plan merchants
Real-Time Dashboard & Analytics
A Shopify-native dashboard built with Polaris and polaris-viz. See your fraud landscape at a glance with drill-down analytics for deeper investigation.
- Risk distribution donut chart (low/medium/high)
- Order activity trend line (30-day)
- High-risk orders requiring attention
- Chargeback win/loss tracking with bar charts
- Signal effectiveness analysis (which signals predict chargebacks)
- Geographic risk heatmap by country
- Most disputed products breakdown
Weekly Intelligence Reports
Automated weekly emails summarizing your fraud landscape. Know what's happening without logging into the dashboard every day.
- Weekly order volume and risk breakdown
- New high-risk orders flagged
- Chargeback status updates (wins, losses, pending)
- Revenue protected summary
- IPQS usage tracking (Growth+ plans)
- Actionable recommendations
See it in action
Install ShieldCommerce and watch your first orders get scored in real-time.