PCI DSS 4.0 1.4.4: 1.4.4 Cardholder data stores not reachable from untrusted networks
System components that store cardholder data must not be directly reachable from untrusted networks. Applicability: this does not target account data held in volatile memory, but it does apply where memory is used as persistent storage (for example a RAM disk); account data may sit in volatile memory only for as long as the related business process needs it, such as until the payment transaction completes. Objective under the customized approach: stored cardholder data cannot be reached from untrusted networks.
This control maps to 56 controls across 19 other frameworks. If you already hold one of them, the evidence you collected for it is the starting point here rather than new work.
You are reading one control. How much of PCI DSS 4.0 have you already done?
PCI DSS 4.0 1.4.4 is one control. If you already hold one of the frameworks below, a reviewed crosswalk already says how much of PCI DSS 4.0 your existing evidence covers. Hold ISO 27001:2022 and 139 of 280 PCI DSS 4.0 controls already carry evidence.
Each report names every control your existing framework evidences, every one it does not, the reasoning behind each claim, and the claims that were argued against and rejected. 415 were rejected on the ISO 27001:2022 pair alone.