Protecting payments data and securing the attack surface, beyond the CDE

Keeping your cardholder data environments (CDE) secure and segmented from other parts of your network is the ultimate mitigating control when it comes to protecting cardholder data. Hardening networks from the inside-out to prevent unauthorized CDE access, instantly reduces the attack surface, and the network infrastructure that needs to comply with PCI DSS. That’s why ISAs and QSAs use Nipper solutions to assess whether the CDE is being adequately protected by correctly configured firewalls, switches and routers. This guide explains how organisations can turn PCI DSS 4.0 compliance into continuous security, using Nipper solutions to assess networks, prioritise risks, generate evidence-based reports, fix vulnerabilities faster, and protect cardholder data environments from evolving cyber threats beyond basic compliance requirements.