---
title: TrustLens Glossary
description: "A reference glossary of terms used throughout TrustLens documentation. Organized alphabetically. Cross-references link to relevant detail pages. --- ## A **Action Scheduler** — WooCommerce's bundled background job system. TrustLens queues score recalculations, Historical Sync batches, automation actions, and other async…"
url: "https://webstepper.io/docs/trustlens/glossary/trustlens-glossary/"
updated: "2026-10-18"
category: Glossary
---

# TrustLens Glossary

A reference glossary of terms used throughout TrustLens documentation. Organized alphabetically. Cross-references link to relevant detail pages.

---

## A

**Action Scheduler** — WooCommerce's bundled background job system. TrustLens queues score recalculations, Historical Sync batches, automation actions, and other async work through Action Scheduler. See [Scores Not Updating](/docs/trustlens/troubleshooting/scores-not-updating/) for diagnostics.

**Address Hopping** — Behavior where a customer rapidly changes shipping addresses across multiple orders. Detected by the Shipping Anomalies module, which scores both address diversity (distinct addresses compared with orders) and velocity (3+ new addresses within the configurable window, 30 days by default).

**Allowlist** — Customer-level flag that locks trust score at 100 and segment at VIP. Suppresses all module signals — the customer is treated as fully trusted regardless of behavior. See [Blocking and Allowlisting](/docs/trustlens/customer-management/blocking-and-allowlisting/).

**Attack History** — Pro Card-Testing Defense forensic view (the 24-hour intelligence panel) showing decline codes, top attacking fingerprints, an hourly timeline, and CSV export. See [Attack History](/docs/trustlens/card-testing-defense/attack-history/).

**Auto-Escalation** — Pro feature that automatically triggers Panic Freeze when a Card-Testing attack spreads across multiple device fingerprints. Default trigger: 3 fingerprints in 10 minutes. See [Auto-Escalation](/docs/trustlens/card-testing-defense/auto-escalation/).

**Automation Engine** — Pro feature for building trigger-condition-action rules that respond to TrustLens events. See [Automation Overview](/docs/trustlens/automation/automation-overview/).

---

## B

**Block** — Customer-level flag preventing the customer from completing checkout (when the master enforcement toggle is on). Does not affect score; the customer's trust score remains whatever signals produced. See [Blocking and Allowlisting](/docs/trustlens/customer-management/blocking-and-allowlisting/).

**Block Message** — The error shown to blocked customers at checkout. Customizable; should be neutral.

**Blocks Checkout** — WooCommerce's newer Gutenberg-block-based checkout. TrustLens's Request Gate handles both Classic and Blocks checkout uniformly.

**Blended Ratio** — Chargeback ratio computed across all card brands combined. Shown in Pro's Chargeback Monitor and Command Center panel alongside per-network ratios; the Free dashboard alert checks each network against its own line.

**Browser Challenge** — Optional free Card-Testing Defense layer that asks suspicious checkouts to pass a Cloudflare Turnstile challenge before payment is attempted.

---

## C

**Card-Testing Attack** — Automated probing of stolen card data through a payment gateway. Card-Testing Defense detects and blocks these in real-time.

**Card-Testing Defense** — The TrustLens module that watches checkout authorization attempts at request-time and blocks fingerprints producing high decline velocity. See [Card-Testing Defense Overview](/docs/trustlens/card-testing-defense/overview/).

**Caution** — Customer segment for scores 30–49. Early-warning territory; monitor without auto-blocking.

**Chargeback** — Formal dispute filed by a cardholder with their card network. TrustLens auto-ingests Stripe/WooPayments chargebacks and supports manual entry for other gateways. See [Chargeback Tracking](/docs/trustlens/detection-modules/chargeback-tracking/).

**Chargeback Monitor** — Pro dedicated page for chargeback management. Per-brand ratios, 12-month trend, Dispute Evidence Report, auto-block. See [Chargeback Monitor (Pro)](/docs/trustlens/chargeback-monitor/chargeback-monitor/).

**Chargeback Ratio** — Disputes divided by orders for a given period. Card networks use this to determine monitoring program eligibility.

**Classic Checkout** — WooCommerce's legacy shortcode-based checkout. TrustLens supports it alongside Blocks checkout.

**Cooldown** — Minimum time between firings of an automation rule on the same target. Prevents alert spam.

**Coupon Abuse** — Pattern of exploiting coupons (first-order coupons across multiple accounts, coupon-then-refund cycles). Detected by the Coupons module. See [Coupon Abuse Detection](/docs/trustlens/detection-modules/coupon-abuse-detection/).

**Critical** — Lowest customer segment, scores 0–9. Indicates confirmed multi-module abuse.

**Customer Detail Page** — Per-customer profile view showing trust score, signal breakdown, event timeline, linked accounts, return-rate trend, admin notes, and tags. See [Customer Detail Profile](/docs/trustlens/customer-management/customer-detail-profile/).

---

## D

**Dispute** — Synonymous with chargeback. A formal claim filed by a cardholder against a transaction.

**Dispute Evidence Report** — Pro feature that generates a print-ready behavioral risk report page (save it as a PDF from your browser) for submission alongside dispute responses. See [Dispute Evidence Report](/docs/trustlens/chargeback-monitor/dispute-evidence-report/).

**Dispute Reason** — The category code provided by the gateway / network for why a dispute was filed (fraudulent, product not received, etc.).

---

## E

**ECP** — Mastercard's Excessive Chargeback Program. TrustLens uses a 1.5% line; the network only enrolls merchants above a monthly minimum number of chargebacks.

**Event Timeline** — Per-customer chronological log of orders, refunds, coupons, disputes, anomalies, blocks, allowlists, and admin notes. Visible on the customer detail page.

---

## F

**Fingerprint** — A hashed identity. Card-Testing Defense identifies a device by a browser fingerprint (canvas, screen, timezone, language, platform, and WebGL renderer, + Pro 12-font signal) and a server-side fingerprint (IP, User-Agent, Accept-Language). Linked Accounts uses separate hashed fingerprints of addresses, phone, payment method, IP, and user-agent. See [Fingerprinting](/docs/trustlens/card-testing-defense/fingerprinting/).

**First-Order Coupon** — A coupon designed for new customers (typically one-use-per-customer). Repeated use across accounts is a fraud signal.

**Fraud Ring** — A group of accounts operated by the same person/team using shared identity (address, payment method, etc.) to multiply benefit or distribute risk. Detected by the Linked Accounts module. See [Detecting Fraud Rings](/docs/trustlens/use-cases/detecting-fraud-rings/).

**Friendly Fraud** — Disputes filed by cardholders who actually received the product but claim non-receipt or fraud. Pattern of bad-faith disputes.

---

## G

**Geo-Diversity Safeguard** — Pro Card-Testing feature that prevents auto-escalation from firing on legitimate viral traffic by checking geographic distribution of contributing fingerprints. See [Geo-Diversity Safeguard](/docs/trustlens/card-testing-defense/geo-diversity/).

---

## H

**HMAC-SHA256** — Keyed cryptographic hash used by TrustLens to pseudonymize customer identifiers. The key is your site's WordPress `auth` secret key, so hashes cannot be cross-correlated between stores.

**Historical Sync** — Batched process that rebuilds TrustLens customer profiles from existing WooCommerce order history. Runs in small batches from the TrustLens admin page (keep it open while it runs) and can be re-run safely.

**HPOS** — High-Performance Order Storage. WooCommerce's new order storage architecture. TrustLens is fully HPOS-compatible.

---

## L

**Linked Accounts** — Customer records detected as sharing identity via fingerprints. Detection module name. See [Linked Accounts Detection](/docs/trustlens/detection-modules/linked-accounts-detection/).

**Lockout** — Card-Testing Defense action where a device fingerprint is temporarily blocked from completing checkout (90 seconds the first time, then 15 minutes, 1 hour, and 24 hours for repeat offenders).

---

## M

**Master Toggle** — Refers to the global on/off setting for checkout enforcement (Settings → General → Enable Blocking). Off by default.

**Minimum Orders** — The Full-confidence Order Threshold (Settings → General, default 3). Below it, most detection modules wait for more history and return risk is confidence-weighted; linked-account penalties and the account-age bonus still apply, so a new customer's score can still move. Prevents false positives on new customers.

**Module** — Self-contained detection unit (Returns, Orders, Coupons, etc.). Each module observes specific events and emits signals.

---

## N

**Normal** — Customer segment for scores 50–69. The default; includes neutral customers and most new customers with little history.

---

## P

**Panic Freeze** — Emergency stop that halts all checkouts for 5, 15, or 30 minutes (default 15). Manually triggered or auto-triggered (Pro). See [Panic Button](/docs/trustlens/card-testing-defense/panic-button/).

**Payment Method Controls** — Pro feature for hiding specific payment gateways from high-risk customers without fully blocking. See [Payment Controls](/docs/trustlens/setting-configuration/payment-controls/).

**Pseudonymization** — Replacing direct identifiers (emails, IPs) with hashes that don't reveal the underlying value but allow internal matching. TrustLens uses keyed HMAC-SHA256.

---

## R

**Recalculation** — Re-running the scoring engine for a customer. Triggered automatically by relevant events, or manually via the Recalculate button.

**Request Gate** — TrustLens's unified checkout interception layer. Handles Classic + Blocks checkout through one rule registration surface.

**Return Rate** — Refunded orders divided by counted orders (orders that reached completed or refunded, plus any order with a refund), expressed as a percentage. The Returns module scores it over the last 90 days when the customer has recent orders, otherwise over their lifetime.

**Risk** — Customer segment for scores 10–29. Likely abuse pattern; hold for review.

**Rule Inspector** — Per-rule diagnostic view showing recent firing activity and SKIP reasons. See [Rule Inspector](/docs/trustlens/automation/rule-inspector/).

---

## S

**Save-Time Validator** — Automation engine component that checks rules for satisfiability and schema before allowing them to save. Prevents silently-broken rules.

**Segment** — One of six tiers (VIP, Trusted, Normal, Caution, Risk, Critical) determined by trust score range. See [Six Customer Segments](/docs/trustlens/trust-scoring/six-customer-segments/).

**Signal** — A single contribution to a customer's trust score from a detection module. Sum of signals + 50 (base) + age bonus = final score. See [Signals Explained](/docs/trustlens/trust-scoring/signals-explained/).

**Speedometer** — Former name for the Dashboard's chargeback-ratio display. There is no free speedometer: Free shows an alert band and header status when a card-network line is crossed, and Pro shows the Chargeback Ratio Monitor panel and page.

**Store API** — WooCommerce's REST API for Blocks checkout. TrustLens's Request Gate handles Store API endpoints alongside Classic.

---

## T

**Trailing 30 Days** — Rolling window used by Pro Chargeback Monitor alongside the calendar-month view.

**Trust Score** — The 0–100 number TrustLens assigns to every scored customer. See [The 0–100 Score](/docs/trustlens/trust-scoring/the-0-100-score/).

**Trusted** — Customer segment for scores 70–89. Reliable repeat buyers.

---

## V

**VAMP** — Visa Acquirer Monitoring Program, which replaced VDMP and VFMP in 2025. Its merchant "Excessive" line is 1.5% (2.2% in CEMEA). It counts fraud reports (TC40) as well as disputes; fraud reports never reach WooCommerce, so the Visa ratio TrustLens shows is a floor. Since 1.3.23 TrustLens checks Visa against a single VAMP line.

**VDMP** — Visa's former Dispute Monitoring Program, replaced by VAMP. TrustLens no longer tracks it separately.

**Velocity** — Rate of events over a time window. Used by Card-Testing Defense (decline velocity), Shipping Anomalies (address change velocity), and others.

**VFMP** — Visa's former Fraud Monitoring Program, replaced by VAMP. TrustLens no longer tracks it separately.

**VIP** — Top customer segment, scores 90–100. Either allowlisted or organically earned through long tenure plus clean record.

**VIP Bypass** — Card-Testing Defense setting that exempts established customers from velocity checks at checkout — anyone with at least the Full-confidence Order Threshold of orders (default 3) who isn't in Risk or Critical, not just the VIP segment. On by default. It does not apply during a Panic Freeze. See [VIP Bypass](/docs/trustlens/card-testing-defense/vip-bypass/).

---

## W

**Wardrobing** — Refund-abuse pattern of buying items, using them briefly (wearing clothing, using electronics), and returning for full refund. Detected by the Returns module when 2+ delivered orders are fully refunded with item-level return evidence.

**Warn Threshold** — Pro setting: the percentage of a card network's line at which the Chargeback Monitor and its daily email start warning. Default 70%, adjustable between 50% and 100%.

**Webhook** — HTTP POST delivery of an event to an external receiver. TrustLens supports both outgoing webhooks (automation rule actions) and incoming webhooks (gateway dispute notifications). See [Webhooks and HMAC](/docs/trustlens/automation/webhooks-and-hmac/).

**WooPayments** — WooCommerce's first-party payment processor. Auto-ingestion of disputes is supported natively.

**WP-Cron** — WordPress's task scheduler. Action Scheduler relies on it; disabling WP-Cron without replacing with real server cron breaks background processing.