Cacco Launches Ad Fraud Prevention Service "X-log"

Cacco Inc. (Headquarters: Minato-ku, Tokyo; Representative Director and President: Hiroyuki Iwai; Securities Code: 4166; hereinafter "Cacco"), which provides the No. 1*1 fraud order detection service in Japan and contributes to building a secure e-commerce infrastructure, announced today that it has acquired the "X-log" (Ex-log) web advertisement fraudulent click prevention service business from Japan Claudia Inc. and has begun offering it.

This service makes it possible to detect and reduce wasted advertising costs due to fraudulent clicks (ad fraud) at the ad inflow stage. Combined with our existing "O-PLUX" service, we have established a system to seamlessly provide fraud prevention for online businesses, from ad acquisition to login and payment.

*1: Tokyo Shoko Research Ltd. "Survey on the number of paid fraud detection services introduced on EC sites in Japan" as of March 31, 2025.

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■ Background: Approximately 1 in 2 EC businesses feel "wasted advertising costs"
Domestic internet advertising expenditure is projected to reach a record high of 3,474.1 billion yen*2 in 2024, making it a crucial customer acquisition method for businesses. However, "ad fraud," where advertising costs are defrauded by bots or competitors' fraudulent ad clicks, is becoming serious.

Our independent survey (internet research targeting 553 fraud prevention managers at EC businesses) revealed that 48.3% responded that they "have felt wasted advertising costs," indicating a pressing issue on the ground.

Furthermore, a survey result (IAS "Media Quality Report") indicates that Japan has one of the highest ad fraud rates among major countries. Institutionalization of countermeasures is rapidly progressing, with the "Guidance for Advertisers, etc., for Appropriate and Effective Digital Ad Delivery"*3 published by the Ministry of Internal Affairs and Communications in June 2025 and the JICDAQ (Japan Institute for Digital Advertising Quality) certification system. Cacco has specialized in fraud detection (fraudulent login, fraudulent remittance, fraudulent order/payment) in the EC and financial sectors. By adding "X-log" to our lineup, which addresses the advertising stage at the entry point of customer acquisition, we aim to provide a "comprehensive fraud prevention solution" that supports both maximizing advertising effectiveness and preventing subsequent payment damage.

*2: Dentsu Group "Global Advertising Spending Growth Forecast (2024-2027)" (December 3, 2024)
*3: Ministry of Internal Affairs and Communications "Guidance for Advertisers, etc., for Appropriate and Effective Digital Ad Delivery" (June 9, 2025)

■ Features of the Ad Fraud Prevention Service "X-log"
"X-log" is an ad fraud prevention tool compatible with both Google and Yahoo! JAPAN ad platforms, which account for over 90% of the domestic search advertising market.

1. Highly accurate automatic blocking function:
Our proprietary algorithms, including AI, analyze access and automatically identify fraudulent IP addresses, devices, and ineffective distribution destinations. By automatically registering them for exclusion on the ad platform side, we prevent the occurrence of wasted advertising costs in real-time.

2. Virtually zero operational burden:
Since status monitoring and countermeasures are fully automated, there is almost no operational effort required after implementation. If you wish to check the situation, you can grasp the effectiveness of countermeasures and predicted values in real-time on a dedicated dashboard.

3. Can be used as evidence for media-side investigation requests:
Detailed analysis data can be downloaded and fraudulent clicks can be organized by condition. By submitting this as evidence for investigation requests to the media side, concrete actions can be taken to optimize advertising budgets, such as applying for refunds when invalid clicks are recognized.

4. Overwhelming cost performance:
In addition to plans starting from tens of thousands of yen per month, a free plan is also available. This meets the needs of a wide range of businesses, from small and medium-sized enterprises to large corporations, which previously found it difficult to implement countermeasures due to cost.

■ Future Outlook: Function Enhancement and Maximizing Synergy
Moving forward, Cacco will further strengthen the detection engine of "X-log" by utilizing its fraud detection know-how.

Especially for D2C businesses, which often suffer from both ad fraud and fraudulent resale, by providing "O-PLUX" and "X-log" as a set, we will offer unique value that protects everything from ad operations to inventory management.

Cacco will continue to contribute to the development of a sound digital society as a leading company in fraud prevention, based on its management philosophy of "Giving shape to the 'Let's try it' of future game-changers."

[Service Details and Inquiries]
Service prices and detailed specifications are currently being adjusted to suit customer situations.
Please feel free to contact us via the URL below:
URL: https://frauddetection.cacco.co.jp/contact/

■ About Cacco Inc.
Cacco, with the management vision of "Giving shape to the 'Let's try it' of future game-changers," aims to support corporate problem-solving and challenges by utilizing data science with AI and proprietary algorithms. We position "fraud detection services" as our core service, providing EC sites and financial institutions with "O-PLUX," the No. 1 fraud detection service in Japan that can handle everything from fraudulent logins to fraudulent remittances and payments, as well as phishing prevention services.

In our data science services, we contribute to cost reduction, operational efficiency, and profit improvement across various industries such as manufacturing, apparel, and construction, through data utilization and analysis.

*Company names, product/service names (including logos) mentioned are trademarks or registered trademarks of their respective owners.
*The impact of this matter on the financial results for the fiscal year ending December 2026 is currently being evaluated, and we will promptly announce any significant impact that becomes clear.
*In light of this service release, which enables us to independently provide ad fraud prevention solutions, we plan to terminate our business alliance with Value Creation Inc. As there have been no specific transaction relationships with Value Creation Inc. to date, there will be no impact on the financial results for the fiscal year ending December 2026 due to the termination of this business alliance.

Company Profile
Cacco Inc.
Address: 1-5-31 Moto-Akasaka, Minato-ku, Tokyo
Representative: Hiroyuki Iwai, Representative Director and President
Established: January 28, 2011
URL: https://cacco.co.jp/
Business Description: SaaS algorithm provision business (fraud detection services, payment consulting services, data science services)
Related Sites: Fraud Detection Media "Fuse Lab" https://frauddetection.cacco.co.jp/media/
Data Science Blog https://cacco.co.jp/datascience/blog/
Recruitment Information https://cacco.co.jp/recruitment/index.html