{"id":23903,"date":"2025-12-19T08:22:05","date_gmt":"2025-12-19T01:22:05","guid":{"rendered":"https:\/\/frauddetection.cacco.co.jp\/media\/en\/?p=23903"},"modified":"2026-02-13T12:57:08","modified_gmt":"2026-02-13T05:57:08","slug":"4-measures-to-stop-credit-master-fraud-what-e-commerce-businesses-need-to-know-about-the-damage-it-causes","status":"publish","type":"post","link":"https:\/\/frauddetection.cacco.co.jp\/media\/en\/knowhow\/23903\/","title":{"rendered":"4 Measures to Stop Credit Master Fraud: What E-commerce Businesses Need to Know About the Damage It Causes"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">&#8220;I want to know how to prevent credit master attacks.&#8221;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">&#8220;What kind of damage is caused by credit master attacks?&#8221;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The number of e-commerce businesses that feel threatened by credit master attacks, which are frequently heard about these days, has increased.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Credit master is a <\/span><b>criminal act of fraudulently using someone else&#8217;s credit card by taking advantage of the regularity of card numbers.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">When a large number of credit master attacks occur, <\/span><b>a large number of authorizations are generated, which can lead to a heavy burden of payment processing fees and a strain on servers, negatively affecting payment processing.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">This article will explain:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Damage caused by a large number of credit master attacks<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Measures to prevent damage from credit master attacks<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">EC operators will be able to see what they should do to prevent unauthorized use by credit masters by reading this article.<\/span><\/p>\n<p><a href=\"https:\/\/caccoglobal.com\/en\/#contact-us\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-24004\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1000x300.png\" alt=\"\" width=\"1000\" height=\"300\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1000x300.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-300x90.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-768x230.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1536x461.png 1536w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-400x120.png 400w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-800x240.png 800w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1200x360.png 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1.png 2000w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\n<h2><b>The Damage From Credit Master Continues To Break New Records in Japan<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">First, let&#8217;s look at the amount of damage caused by credit master fraud.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The amount of damage caused by credit master fraud is currently at a record high and continues to increase, making it no exaggeration to say that it is a serious social problem.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As you can see from the red box in the graph below, the amount of damage from card number misuse is increasing year by year, with 37.63 billion yen in damage occurring between January and September 2023.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u203b\u5f15\u7528\uff1a<\/span><a href=\"https:\/\/www.j-credit.or.jp\/information\/statistics\/download\/toukei_03_g.pdf\"><span style=\"font-weight: 400;\">\u65e5\u672c\u30af\u30ec\u30b8\u30c3\u30c8\u5354\u4f1a<\/span><\/a><\/p>\n<p><b>Since credit card fraud due to number theft is expected to continue in the future<\/b><span style=\"font-weight: 400;\">, EC businesses should urgently implement measures against fraud.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Moreover, credit card fraud is carried out using various methods other than number theft, so <\/span><b>it will be necessary to implement measures that can deal with various methods.<\/b><\/p>\n<h2><b>Four Types of Damage Incurred by E-commerce Businesses Due to Credit Master Fraud<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Here, we will introduce the damages that e-commerce businesses suffer due to large-scale credit master attacks.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are four types of damages that e-commerce businesses suffer due to large-scale credit master attacks.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Increased burden due to a large number of authorizations<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Becoming a target for criminal groups<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Server downtime due to large-scale attacks<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Loss of customer trust<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">We will explain each of these in detail.<\/span><\/p>\n<h3><b>1. Increased burden due to a large number of authorizations<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">When an EC business suffers credit master fraud, <\/span><b>a large number of authorizations occur, increasing the burden on the EC business<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Authorization is <\/span><b>the procedure of automatically confirming credit information with the credit card company<\/b><span style=\"font-weight: 400;\"> when a customer uses card payment.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-23907 aligncenter\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30aa\u30fc\u30bd\u30ea\u306e\u6d41\u308c-300x169.png\" alt=\"\" width=\"790\" height=\"445\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30aa\u30fc\u30bd\u30ea\u306e\u6d41\u308c-300x169.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30aa\u30fc\u30bd\u30ea\u306e\u6d41\u308c-1000x562.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30aa\u30fc\u30bd\u30ea\u306e\u6d41\u308c-768x432.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30aa\u30fc\u30bd\u30ea\u306e\u6d41\u308c.png 1366w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Authorization requires e-commerce businesses to pay a processing fee, so <\/span><b>a large volume of authorizations increases the burden of these fees<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><b>2. Targeted by criminal groups<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">If an unauthorized credit card transaction occurs, your site is more likely to be recognized by criminal groups as having &#8220;lax security measures.&#8221;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Once a criminal group targets your site, you could experience thousands or tens of thousands of unauthorized access attempts, potentially leading to further fraudulent activity.<\/span><\/p>\n<h3><b>3. Servers crash due to mass attacks<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">If credit card mastering attempts are made in large numbers, the server may crash due to the load.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A server crash can lead to a loss of sales opportunities from legitimate customers, which can cause significant losses for e-commerce businesses.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">In addition, recovery work takes time and effort, which not only reduces operational efficiency but also incurs unnecessary labor costs.<\/span><\/p>\n<h3><b>4. Loss of customer trust<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">If an e-commerce site becomes known for being a victim of credit card fraud, customers may think, &#8220;<\/span><b>I don&#8217;t want to buy from a site with weak security measures.<\/b><span style=\"font-weight: 400;\">&#8220;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Also, a large-scale credit card fraud attack can cause the server to crash, leading to customers thinking, &#8220;<\/span><b>This is a disappointing store where I can&#8217;t buy what I want when I want it,<\/b><span style=\"font-weight: 400;\">&#8221; which can lead to a loss of trust.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Trust issues significantly impact sales, so be sure to implement credit card fraud countermeasures to avoid losing trust.<\/span><\/p>\n<h2><b>Four measures to prevent damage from credit master fraud<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">In the previous chapter, we explained that the damage caused by credit master is significant, so from here we will introduce countermeasures to prevent damage.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are four measures to prevent damage from credit master.<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Set input restrictions<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Introduce reCAPTCHA<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Introduce 3D Secure (personal authentication service)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Introduce a fraudulent order detection system<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">We will explain each in detail.<\/span><\/p>\n<h3><b>[Measure 1] Set input limits<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">By setting input restrictions, you can prevent mass attacks by credit masters.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Credit master is an act of <\/span><b>illegally using a large number of card numbers that can be conceived based on regularity<\/b><span style=\"font-weight: 400;\"> by entering them into a form, so setting input restrictions can be said to be an effective measure.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-23906 aligncenter\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u653b\u6483-300x182.png\" alt=\"\" width=\"790\" height=\"479\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u653b\u6483-300x182.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u653b\u6483-768x467.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u653b\u6483.png 790w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/p>\n<p><b>However, <\/b><b>it also blocks legitimate users who make continuous input errors<\/b><span style=\"font-weight: 400;\">, which <\/span><b>carries the risk of &#8220;cart abandonment,&#8221;<\/b><span style=\"font-weight: 400;\"> where they stop the purchase process midway.<\/span><\/p>\n<h3><b>[Measure 2] Introduce reCAPTCHA<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">By implementing reCAPTCHA, you can <\/span><b>take measures against malicious bots<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">bot: A program that automatically executes predefined processes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">reCAPTCHA is a <\/span><b>security tool that distinguishes between bots and humans by asking users to check a box that says &#8220;I am not a robot&#8221; or by having them read distorted alphanumeric characters<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">While implementing reCAPTCHA is effective for bot countermeasures, there is a risk that it <\/span><b>can be bypassed if credit card fraud is carried out manually<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-23905 aligncenter\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011reCAPTCHA\u3068\u306f-300x182.png\" alt=\"\" width=\"752\" height=\"456\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011reCAPTCHA\u3068\u306f-300x182.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011reCAPTCHA\u3068\u306f-768x467.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011reCAPTCHA\u3068\u306f.png 790w\" sizes=\"auto, (max-width: 752px) 100vw, 752px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3><b>[Measure 3] Introduce 3D Secure (identity verification service)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">One effective measure against credit master fraud is the <\/span><b>introduction of 3D Secure (personal authentication service)<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">3D Secure is a <\/span><b>system that authenticates high-risk transactions, such as with one-time passwords, when making payments for online shopping<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">By performing personal authentication only for high-risk transactions, it can be said that <\/span><b>credit master fraud countermeasures can be taken while suppressing the risk of &#8220;cart abandonment&#8221;<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Furthermore, the<\/span><a href=\"https:\/\/www.meti.go.jp\/press\/2022\/03\/20230315001\/20230315001.html\"> <span style=\"font-weight: 400;\">Credit Card Security Guidelines<\/span><\/a> <b>require all merchants in principle to introduce 3D Secure by the end of March 2025 in Japan.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">However, 3D Secure alone is not a perfect countermeasure against credit master fraud. It can be said that comprehensive measures can be taken by <\/span><b>using 3D Secure in conjunction with a fraudulent order detection system<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h3><b>[Measure 4] Implement a fraudulent order detection system<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">To prevent credit master fraud, we recommend <\/span><b>introducing a fraudulent order detection system that discovers and blocks fraudulent acts by humans<\/b><span style=\"font-weight: 400;\">, in addition to bot countermeasures and 3D Secure.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A fraudulent order detection system is <\/span><b>a system that detects fraudulent purchases at the time of order and stops product provision before shipping.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Cacco Inc., which operates this site, develops and provides fraudulent order detection systems such as &#8220;<\/span><a href=\"https:\/\/frauddetection.cacco.co.jp\/o-plux\/?ref_type=media_$$post_id$$\"><span style=\"font-weight: 400;\">O-PLUX<\/span><\/a><span style=\"font-weight: 400;\">&#8221; and &#8220;<\/span><a href=\"https:\/\/frauddetection.cacco.co.jp\/fusei-checker\/?ref_type=media_$$post_id$$\"><span style=\"font-weight: 400;\">Fraud Checker<\/span><\/a><span style=\"font-weight: 400;\">.&#8221;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">As mentioned earlier, <\/span><b>reCAPTCHA and 3D Secure alone cannot completely block credit master fraud carried out by human hands.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">Therefore, to block both bot and human-operated fraudulent activities, it is necessary to introduce a fraudulent order detection system, which can be said to be the strongest countermeasure against credit master fraud.<\/span><\/p>\n<p><a href=\"https:\/\/caccoglobal.com\/en\/#contact-us\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-24004\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1000x300.png\" alt=\"\" width=\"1000\" height=\"300\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1000x300.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-300x90.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-768x230.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1536x461.png 1536w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-400x120.png 400w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-800x240.png 800w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1200x360.png 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1.png 2000w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\n<h2><b>If you&#8217;re looking for credit master countermeasures, we recommend the fraudulent order detection system &#8220;O-PLUX&#8221;.<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">If you&#8217;re looking for a fraud detection system to counter credit master fraud, <\/span><b>&#8220;<\/b><a href=\"https:\/\/frauddetection.cacco.co.jp\/o-plux\/?ref_type=media_$$post_id$$\"><b>O-PLUX<\/b><\/a><b>&#8221; is highly recommended.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">The reason O-PLUX can stop credit master fraud is that it conducts real-time screening using multiple factors such as device information and attribute information before authorization on order screens and card information registration screens, preventing suspicious credit master payments from proceeding to authorization.<\/span><\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-23904 aligncenter\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011O-PLUX\u304c\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u3092\u6b62\u3081\u3089\u308c\u308b\u7406\u7531-300x169.png\" alt=\"\" width=\"751\" height=\"423\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011O-PLUX\u304c\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u3092\u6b62\u3081\u3089\u308c\u308b\u7406\u7531-300x169.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011O-PLUX\u304c\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u3092\u6b62\u3081\u3089\u308c\u308b\u7406\u7531-1000x562.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011O-PLUX\u304c\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u3092\u6b62\u3081\u3089\u308c\u308b\u7406\u7531-768x432.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2025\/12\/\u3010\u6d77\u5916\u3011O-PLUX\u304c\u30af\u30ec\u30b8\u30c3\u30c8\u30de\u30b9\u30bf\u30fc\u3092\u6b62\u3081\u3089\u308c\u308b\u7406\u7531.png 1366w\" sizes=\"auto, (max-width: 751px) 100vw, 751px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">In this way, O-PLUX can make highly accurate and instantaneous judgments because it <\/span><b>analyzes multiple elements in real time to detect suspicious points in orders<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><a href=\"https:\/\/caccoglobal.com\/en\/#contact-us\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-24004\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1000x300.png\" alt=\"\" width=\"1000\" height=\"300\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1000x300.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-300x90.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-768x230.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1536x461.png 1536w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-400x120.png 400w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-800x240.png 800w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1200x360.png 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1.png 2000w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\n<h2><b>Summary<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">You now understand that credit master attacks don&#8217;t just affect cardholders, but also cause significant damage to e-commerce businesses.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are four types of damage that e-commerce businesses suffer due to credit master attacks:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Increased burden due to a large number of authorizations<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Becoming a target for criminal groups<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Server downtime due to mass attacks<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Loss of customer trust<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">In the worst-case scenario, it could seriously damage the continuation of EC site operations, so it is important to take credit master countermeasures as soon as possible.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">There are four countermeasures to prevent damage from credit master attacks:<\/span><\/p>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Set input restrictions<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Introduce reCAPTCHA<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Introduce 3D Secure (personal authentication service)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Introduce a fraudulent order detection system<\/span><\/li>\n<\/ol>\n<p><span style=\"font-weight: 400;\">To prevent fraudulent activities from both bots and human hands, we recommend introducing a fraudulent order detection system.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Among fraudulent order detection systems, consider introducing &#8220;O-PLUX&#8221; or &#8220;Fraud Checker,&#8221; which offer the strongest high-precision detection in Japan.<\/span><\/p>\n<p><a href=\"https:\/\/caccoglobal.com\/en\/#contact-us\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-24004\" src=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1000x300.png\" alt=\"\" width=\"1000\" height=\"300\" srcset=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1000x300.png 1000w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-300x90.png 300w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-768x230.png 768w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1536x461.png 1536w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-400x120.png 400w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-800x240.png 800w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1-1200x360.png 1200w, https:\/\/frauddetection.cacco.co.jp\/media\/en\/wp-content\/uploads\/2026\/02\/\u6d77\u5916\u7248\u30d5\u30bb\u30e9\u30dc\u2017\u9577\u65b9\u5f62\u30d0\u30ca\u30fc\u30b5\u30a4\u30ba-1.png 2000w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"&#8220;I want to know how to prevent credit master attacks.&#8221; &#8220;What kind of damage is caused by credit master attacks?&#8221; The number of e-commerce businesses that feel threatened by credit master attacks, which are frequently heard about these days, has increased. Credit master is a c&hellip;","protected":false},"author":29,"featured_media":23908,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-23903","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowhow"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>4 Measures to Stop Credit Master Fraud: What E-commerce Businesses Need to Know About the Damage It Causes - \u3010Official\u3011Fraud Detection Lab\uff5cCacco Inc.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/frauddetection.cacco.co.jp\/media\/en\/knowhow\/23903\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4 Measures to Stop Credit Master Fraud: What E-commerce Businesses Need to Know About the Damage It Causes - \u3010Official\u3011Fraud Detection Lab\uff5cCacco Inc.\" \/>\n<meta property=\"og:description\" content=\"&#8220;I want to know how to prevent credit master attacks.&#8221; &#8220;What kind of damage is caused by credit master attacks?&#8221; The number of e-commerce businesses that feel threatened by credit master attacks, which are frequently heard about these days, has increased. 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&#8220;What kind of damage is caused by credit master attacks?&#8221; The number of e-commerce businesses that feel threatened by credit master attacks, which are frequently heard about these days, has increased. 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