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Fraud Prevention
April 26, 2023
Aug 23, 2026

Finally, You Can Now Stop Fraudulent and High-Risk Orders on Your Shopify Store

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TL;DR:

  • Quick answer: A "high risk of fraud detected" Shopify order is one the built-in fraud analysis feature has scored as likely unauthorized, based on signals like AVS/CVV mismatches, IP-to-billing-address inconsistencies, large first-time orders, and repeated failed card attempts.
  • Shopify scores every order low, medium, or high risk; treat the score as a prompt for manual review, not an automatic ship-or-cancel decision.
  • Verify suspicious orders by confirming identity, calling the phone number on file, and checking the email address, without adding friction for legitimate buyers.
  • Shopify Protect can reimburse eligible U.S. Shop Pay orders hit with a fraudulent chargeback, but strict fulfillment and tracking deadlines apply.
  • Juniper Research projects merchant losses to online payment fraud will exceed $362 billion globally by 2028, so automated chargeback protection and prevention alerts are the most scalable defense.
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A Shopify order flagged "high risk of fraud detected" is one that Shopify's built-in fraud analysis has scored as more likely to end in a chargeback, based on signals like AVS/CVV mismatches, an IP address that doesn't match the billing address, an unusually large order from a first-time buyer, or repeated failed card attempts. The flag does not mean the order is fraudulent. It means Shopify wants a human to check it before you ship.

If you run an eCommerce store on Shopify, you have almost certainly seen this warning already. The pattern is familiar: a scammer uses stolen card details to place an order, the real cardholder spots the charge days or weeks later, and you're left facing a chargeback plus the cost of goods you already shipped. Juniper Research projects that merchant losses to online payment fraud will exceed $362 billion globally between 2023 and 2028, with $91 billion in losses forecast for 2028 alone, so knowing exactly what a "high risk" flag means, and what to do about it, is worth the ten minutes it takes to read this guide.

Common chargeback reasons that start life as a high-risk order include:

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What Triggers Shopify's "High Risk" Flag?

Shopify's fraud analysis is powered by machine learning trained on transaction patterns across every Shopify store. According to Shopify's own documentation, it evaluates these specific signals on every order:

  • AVS and CVV mismatches: whether the card's Address Verification System check and CVV code actually match what the bank has on file.
  • IP address details: including whether the IP address used to place the order lines up geographically with the billing address.
  • Multiple card attempts: whether the same customer tried more than one credit card before the order went through, a classic card-testing signal.

Shopify does not publish order size, shipping address changes, or phone orders as scoring inputs, but these related patterns are still worth a merchant's own manual review alongside Shopify's score:

  • Billing versus shipping mismatch: a classic sign of a stolen card.
  • Shipping address changed after the order was placed: a common way fraudsters reroute a package once a stolen card has cleared.
  • A large order from a first-time visitor: fraudsters who've verified a stolen card usually cash out fast, in one large purchase, rather than testing it slowly.
  • Phone orders: placing an order by phone skips the automated IP and device checks that flag most other fraud attempts.

The table below summarizes the most common red flags and what to do about each.

Red flagWhy it mattersWhat to do
AVS/CVV mismatchCard details don't match what the bank has on fileTreat as a strong fraud signal; verify before fulfilling
Billing address does not match shipping addressClassic sign of a stolen cardVerify identity before fulfilling
Address changed after the order was placedPackage rerouting is a common fraud tacticRe-review the order for fraud
Large order from a first-time visitorFraudsters cash out fast on tested cardsConfirm identity before shipping
Phone ordersBypasses IP and automated checksApply extra verification
Multiple failed card attemptsCard testing with different card numbersFlag and hold the order

Shopify itself is certified Level 1 PCI DSS compliant, which covers baseline card-data security (vulnerability management, network monitoring, access controls) but is separate from fraud scoring; PCI compliance protects card data, it doesn't decide whether a specific order is risky.

Stats about the rising trend of high-risk orders in ecommerce

How Shopify's Fraud Analysis Score Actually Works

Every order gets scored low, medium, or high risk. Merchants who treat that score as a strict autopilot decision, auto-shipping every "low" order and auto-cancelling every "high" one, tend to lose money in both directions: legitimate high-value customers get cancelled by mistake, and a subset of genuinely fraudulent "low risk" orders still slip through, because the score only reflects the signals Shopify can see, not everything a merchant knows about their own customer base.

The comparison below shows how to treat each score in practice.

Risk levelWhat it meansRecommended merchant action
Low riskNo major fraud signals detectedFulfill normally; still spot-check unusually large or first-time orders
Medium riskOne or two signals present, not conclusive on their ownQuick manual check: confirm the phone number or email before shipping
High riskMultiple strong fraud signals detected togetherFull manual verification before fulfilling, or cancel and refund if verification fails

Stores that get flagged often enough also run into approval problems with their payment service provider, since processors track a merchant's overall fraud and chargeback rate, not just individual orders. A store with a climbing high-risk rate can find itself reclassified as high-risk at the processor level, which is a separate and more painful problem than any single flagged order; a dedicated high-risk payment service provider becomes the more reliable option once that happens.

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Common Scam Order Patterns That Target Shopify Stores

"High risk of fraud detected" and "scam order" are related but not identical questions. The fraud analysis score flags individual orders using generic signals; the patterns below are the specific tactics scammers actually run against Shopify stores, and each one produces a slightly different fingerprint.

Scam patternHow it shows up in your ordersBest defense
Card testing (carding)A burst of small, similar orders in minutes, often from the same IP or device, using different card numbersRate-limit checkout attempts; require CVV on every transaction
Triangulation fraudA "too good to be true" third-party listing funnels a real buyer's order to your store, paid for with a stolen cardWatch for shipping addresses that don't match any marketing channel you actually run
Account takeoverA returning customer's saved details are used to place a large order that doesn't match their order historyFlag sudden changes to shipping address or order size on existing accounts
Refund and return fraudGenuine purchase, then a false damage or non-delivery claim seeking a duplicate refundRequire photos or tracking confirmation before issuing refunds
Friendly fraudThe customer receives the order, then disputes it as unauthorized or "not received" anywayKeep delivery confirmation, IP logs, and communication records for every order

Friendly fraud, also called first-party fraud, where the customer receives the order and then disputes it anyway, makes up a large and growing share of ecommerce chargebacks industry-wide. That trend means a strong evidence trail matters as much as catching the order before it ships.

Step-by-Step: What To Do When Shopify Flags an Order High Risk

Once you understand why an order was flagged, work through it in this order rather than reacting to the label alone:

  1. Read the specific reasons, not just the score. Shopify lists which signals triggered the flag; an AVS mismatch on an international order calls for a different response than three failed card attempts in two minutes.
  2. Verify the customer. Ask for a government-issued ID, a photo of the card being held next to the ID (matching name and last four digits), and, for higher-value orders, a recent piece of mail or a utility bill at the billing address.
  3. Call the phone number on file. A real customer can answer basic questions about what they ordered and where; a disconnected number or a stranger's voice is close to a confirmed answer.
  4. Search the email address. An address already flagged in previous fraud attempts, or one with no footprint at all, is a meaningful data point either way.
  5. Decide: verify, cancel, or fulfill with extra protection. If verification checks out, fulfill and keep the evidence on file. If the customer can't be reached or the story doesn't hold up, cancel and refund before the order ships, not after. If you decide to fulfill despite lingering doubt, require signature confirmation on delivery.
  6. Document the decision. Save every verification step; if the order does turn into a chargeback later, this evidence is exactly what wins a representment case, whether you already know what is a chargeback and how the process works or not.

Don't apply this level of scrutiny to every order. Reserve manual review for orders Shopify actually scores medium or high risk, and let low-risk orders through without friction: extra verification steps that annoy legitimate repeat customers cost more in abandoned carts than they save in blocked fraud.

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Avoid handling chargebacks manually

Does Shopify Protect Cover High-Risk Order Chargebacks?

Shopify Protect reimburses eligible merchants for the chargeback amount and fee when a protected order results in a fraudulent chargeback, at no extra cost. It is narrower than most merchants assume:

  • Available only to merchants in the United States on a U.S. Shopify Payments account.
  • The order must be paid through Shop Pay, not another payment method.
  • Only physical items requiring shipping qualify; digital products and in-store pickup orders are excluded, even mixed in with a shipped item.
  • The order must be fulfilled within 7 days and reach "in transit" status within 10 days, using a supported carrier's tracking.
  • Changing the shipping address after checkout voids coverage, and only the first order in a subscription qualifies.

That coverage window is exactly why the manual review checklist above still matters: an order that misses Shopify Protect's fulfillment deadline, uses a non-Shop-Pay payment method, or ships internationally gets zero built-in reimbursement if it turns fraudulent.

AI Shopping Agents Are Starting to Trip the Same Fraud Signals

A newer wrinkle for 2026: autonomous shopping agents that place orders on a shopper's behalf don't browse, hesitate, or behave like a typical first-time visitor. They can complete checkout in seconds, from a data-center IP address, on a brand-new account, which is close to the exact fingerprint Shopify's fraud analysis was built to catch. Merchants are starting to see legitimate agent-placed orders flagged high risk for the same reasons a card-testing bot would be, and the reverse is also true: a poorly built shopping agent can be an easier target for fraud than a human checkout flow. The AI agent chargeback liability question, who's responsible when an autonomous agent authorizes a disputed purchase, is still being worked out by card networks, and agentic commerce chargebacks already need a different evidence trail than a standard dispute, since there's no human browsing history to point to.

Fraud Detection and Prevention Tools That Scale

Manual due diligence catches plenty, but it doesn't scale past a handful of flagged orders a day. A broader ecommerce fraud prevention approach combines Shopify's built-in scoring with a dedicated chargeback protection layer and a chargeback alert service, so risky orders get flagged and disputes get intercepted before they ever become a chargeback. Chargeflow, for example, layers machine learning trained on transaction data across many Shopify stores on top of Shopify's own fraud analysis, then automates the representment work if a dispute still comes through. The goal isn't to replace judgment on individual orders; it's to stop spending hours a week on the ones your own review process would have caught anyway.

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Chargeflow's Integrations

Win Back Chargebacks on Shopify, Automatically

Chargeflow integrates directly with your Shopify store to fight chargebacks and disputes for you, with no manual work required.

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White circular logo with interlocking shapes at the center surrounded by overlapping orbit-like elliptical lines and scattered blue diamond shapes.

Chargebacks?
No longer your problem.

Recover 4x more chargebacks and prevent up to 90% of incoming ones, powered by AI and a global network of 20,000 merchants.

600+ reviews
No credit card needed.
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