The organization must prefer the use of
WPA2 Enterprise (802.1x) key encryption methods.
OWASP Top 10 A6:2017-Security Misconfiguration. Security misconfiguration is the most commonly seen issue. This is commonly a result of insecure default configurations, incomplete or ad hoc configurations, open cloud storage, misconfigured HTTP headers, and verbose error messages containing sensitive information. Not only must all operating systems, frameworks, libraries, and applications be securely configured, but they must be patched/upgraded in a timely fashion.
PCI DSS v3.2.1 - Requirement 4.1 Use strong cryptography and security protocols to safeguard sensitive cardholder data during transmission over open, public networks. The protocol in use only supports secure versions or configurations.
PCI DSS v3.2.1 - Requirement 4.1.1 Ensure wireless networks transmitting cardholder data or connected to the cardholder data environment, use industry best practices to implement strong encryption for authentication and transmission.
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