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PCI Requirement 1.3 focuses on ensuring that you prohibit direct public traffic from the Internet into the Cardholder Data Environment (CDE). PCI Requirement 1.3 states, “Prohibit direct public access between the Internet and any system component in the Cardholder Data Environment.” The PCI DSS v3.2 says that the purpose for PCI Requirement 1.3 is to protect system components that store cardholder data. If the protections put in place are bypassed, your system could be compromised.
