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Adyen Data Leak: 102K Records Exposed via Third-Party

By InsecureWeb Team

This report reflects observations of dark web activity. InsecureWeb makes no representations regarding the accuracy of this data.

Adyen Data Leak: 102K Records Exposed via Third-Party

đź’Ą Data Breach Summary

A significant data leak involving Adyen has been exposed by the hacker @Satanic on darkforums.st. The breach consists of two datasets:

  • Table-1: ~67,000 unique records
  • Table-2: ~35,000 unique records

The leaked data allegedly originates from a third-party integration connected to Adyen’s payment processing environment rather than a direct compromise of Adyen’s internal systems.

🏢 About Adyen

Adyen is a leading Dutch payment processing company and acquiring bank listed on Euronext Amsterdam, enabling businesses to accept e-commerce, mobile, and point-of-sale payments globally.

🔍 Company Data Breach History

  • April 2025: Adyen experienced a large-scale DDoS attack that disrupted services in Europe. The company reported no internal data breach during that incident.
  • Current leak: This breach appears linked to a third-party service handling Adyen data, similar to prior incidents affecting integrated platforms rather than Adyen’s own infrastructure.

⚠️ Where and How?

The leak was published on darkforums.st, exposing payment-related datasets obtained via unauthorized third-party access. This data can be exploited for targeted fraud, phishing, and business identity attacks.

🔧 Recommendations for Personal Data Protection

For affected businesses and users:

  • Change passwords for any linked accounts.
  • Enable two-factor authentication to prevent unauthorized access.
  • Monitor banking and payment platforms for suspicious activity.
  • Review third-party integrations for security gaps.

What is InsecureWeb?

InsecureWeb is a Dark Web monitoring service that keeps track of recent data breaches and tracks their impact by monitoring the darkest places of the internet.

Our commitment lies in providing top-notch cybersecurity services to our clients. Through continuous monitoring of the dark web and advanced threat detection methodologies, we strive to identify potential breaches promptly, enabling swift response and mitigation efforts. With our state-of-the-art tools and expertise, we prioritize the confidentiality, integrity, and availability of our clients’ data.

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