Simon Wijckmans

Simon Wijckmans

Simon Wijckmans is the CEO and founder of c/side. Previously, he held product management roles at Cloudflare and Vercel, where he focused on web security.

E-Commerce

PCI DSS 4.0 is Now in Full Effect: What That Means for E-Commerce Merchants

April 29, 2025 at 11:56 am

Many e-commerce merchants believe choosing a PCI-compliant payment processor covers their security responsibilities. Starting March 31, 2025, that assumption put them at risk. Under PCI DSS v4.0.1, even merchants that outsource payment processing must meet stricter security requirements, especially around third-party scripts. For years, outsourcing payment processing allowed merchants to complete a streamlined Self-Assessment Questionnaire…