Merchant Fraud Guide Sections

Card-Not-Present Fraud Prevention

How Stripe AI Fraud Detection Works

Stripe's Radar scores every payment with machine learning and gives it a risk level. Here is what the score means and what you can change.

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Shopify Fraud Analysis High: What to Do Next

A high-risk flag in Shopify is a strong warning, not a verdict. Here is how to read it, what Shopify already did, and what to check before you ship.

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Medium Risk on a Shopify Order: What to Do

A medium fraud analysis result in Shopify is a request for a second look, not a verdict. Here is how to read it and decide.

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Card Not Present Fraud Prevention

CNP fraud is the biggest online fraud problem. Here is a set of habits, in layers, that a small merchant can run at checkout.

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Card Not Present Fraud Detection at Checkout

What your risk engine looks at before an order is authorized, and what you can set yourself.

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Card Testing Fraud and How to Stop It

Someone is running stolen card numbers through your checkout in bulk. Here is what they are doing, what it costs you, and how to shut it down.

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Return Fraud Detection: A Merchant's Guide

Return fraud drains money through your own refund button. Here is how to spot the patterns in your order data and what to do about them.

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Account Takeover Fraud Detection

Someone logs in with a stolen password and shops on a saved card. Here is how to catch it before the order ships and the chargeback lands.

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Card Not Present Fraud: What It Is

No card, no reader, no way to see the buyer. Card not present fraud is the risk every online checkout carries, and here are the layers that reduce it.

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Account Takeover Fraud Prevention at Checkout

A stolen login can cost you more than one order. Here is how to spot a takeover and stop it before the money moves.

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Fraud Analysis in Shopify: How to Read It

Shopify scores each order for fraud risk before you fulfill it. Here is where the risk level lives, what it means, and what to do next.

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Account Takeover Fraud: How to Spot It

A thief logs into your customer's account, not yours. Here is how that turns into fraud at your checkout, and what to watch for.

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First-Party Fraud: When Customers Dispute

The card is real. The buyer is real. The dispute comes later, on purpose or by mistake. Here is how to see it coming.

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AI Fraud Detection: What It Does for Your Store

How AI and machine learning actually catch fraud at checkout, in plain English, and what to look for when you pick a tool.

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Fraud Scoring: What the Number Means

A fraud score turns a pile of risk signals into one number. Here is how to read it, act on it, and know when it is wrong.

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