5 min reads: Important updates, tips and news to keep you in the know.

Key Updates in PCI DSS V4.0: Focusing on Requirements 6.4.3 and 11.6.1 for eCommerce

Introduction: As we navigate through the changes in PCI DSS V4.0, two new requirements, 6.4.3 and 11.6.1, stand out for their critical role in enhancing payment page security. This guide provides a focused look at these updates and actionable steps for eCommerce businesses to achieve compliance.

1. Requirement 6.4.3: Managing JavaScript on Payment Pages

• Purpose: This requirement is designed to minimize the attack surface on the payment page by managing all JavaScript present.
• Action Steps:
  • Audit JavaScript Usage: Conduct a thorough review of all JavaScript used on your payment pages.
  • Implement Strict Control Measures: Ensure only authorized scripts run on these pages. This includes maintaining an inventory of legitimate scripts and routinely validating their integrity.
  • Regular Monitoring: Set up processes to monitor any changes or additions to the scripts.
  • Staff Training: Educate your development and security teams about secure JavaScript practices and the importance of minimizing external scripts.

2. Requirement 11.6.1: Detecting and Alerting Payment Page Tampering

• Purpose: Aimed at detecting any tampering or unauthorized changes to the payment page and generating alerts for such activities.
• Action Steps:
  • Deploy Change Detection Tools: Utilize tools that can monitor and detect changes in real-time on your payment pages.
  • Alert Mechanisms: Establish a robust alert system that notifies your security team immediately when modifications are detected.
  • Regular Audits: Perform frequent security audits of your payment pages to ensure their integrity.
  • Incident Response Plan: Develop a clear response plan for when unauthorized changes are detected.

For Both SMBs and Enterprises:

• Technology Upgrade: Invest in and integrate security tools that support these new requirements.
• Policy Update: Revise your security policies to include these new mandates.
• Compliance Deadline: Plan to meet these requirements as soon as possible, ideally by mid-2024, to ensure compliance and enhance payment page security.

Conclusion: Complying with requirements 6.4.3 and 11.6.1 in PCI DSS V4.0 is crucial for safeguarding your payment environment. By focusing on these updates, eCommerce businesses can significantly reduce their vulnerability to attacks and ensure a secure transaction process for their customers.