by Source Defense

Source Defense is the pioneer and market leader in eSkimming security, recognized by the PCI Council and trusted by over a thousand of the world’s leading merchants. Since introducing the first behavior-based client-side protection platform in 2016, Source Defense has continued to safeguard the global payments ecosystem from data theft, privacy violations, and compliance failures.

Trusted Across the Payments Landscape
Our patented technology protects organizations of every size, from small merchants to the largest payment processors securing over $45 billion in online sales annually. Source Defense is trusted by three of the five major card brands, eight of the top twelve global payment gateways, and more than 150 Qualified Security Assessor Companies (QSACs) worldwide.

Built for Compliance and Control
Source Defense directly supports PCI DSS 4.0.1 requirements 6.4.3 and 11.6.1, providing the controls needed to inventory, authorize, and monitor every script running on payment pages. The solution ensures continuous protection, detects and blocks unauthorized script changes in real time, and simplifies compliance reporting with push-button automation.

Why Leading Brands Choose Source Defense
Our patented, behavior-based approach delivers real-time protection against eSkimming, formjacking, and data leakage without operational burden. Deployment takes hours, management takes less than one hour per month, and compliance evidence is automatically maintained. Independent reviews by Coalfire and VikingCloud confirm the platform’s effectiveness in meeting PCI DSS controls for script management and change detection.

Key Differentiators

  • Behavior-Based Protection: Stops unauthorized script behavior before data exfiltration occurs.
  • Global Scale: Secures merchants, gateways, and acquirers across the global payment ecosystem.
  • Compliance Alignment: Fully supports PCI DSS 4.0.1 6.4.3 and 11.6.1 with automated reporting.

Ease of Use: “Set it and forget it” deployment with minimal maintenance.

Request a demo to see how behavior-based controls stop eSkimming and simplify PCI evidence, or ask for the 30-day action plan to start now.

PCI DSS 4.0 makes client-side security a priority.

Source Defense delivers a solution for 6.4.3 and 11.6.1 without adding a burden to your security teams.

Scroll
Source Defense
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.