Free Tool: PCI DSS: Requirement 4

Encrypt transmission of cardholder data across open, public networks


Action1 Customers

Open, public networks include the Internet, WiFi, Bluetooth, GSM and other channels. All sensitive information must be encrypted during transmission over public networks, because it is easy and common for attackers to capture or divert the data. Misconfigured wireless networks and vulnerabilities in legacy encryption and authentication protocols continue to be targets of malicious individuals who exploit these vulnerabilities to gain privileged access to cardholder data environments. Action1 addresses this section of PCI at the endpoint level, making sure all wireless communications are configured properly with strong encryption enabled.

4.1: Safeguard Transmission of Cardholder Data
    Strong cryptography and security protocols to safeguard sensitive cardholder data during transmission over open, public networks

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PCI DSS: Requirement 4

Find more information on PCI DSS: Requirement 4 at Microsoft TechNet.