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💼 4.2 PAN is protected with strong cryptography during transmission.

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💼 4.2.1 Strong cryptography and security protocols are implemented to safeguard PAN during transmission over open, public networks.29
    💼 4.2.1.1 An inventory of the entity's trusted keys and certificates used to protect PAN during transmission is maintained.
    💼 4.2.1.2 Wireless networks transmitting PAN or connected to the CDE use industry best practices to implement strong cryptography for authentication and transmission.
💼 4.2.2 PAN is secured with strong cryptography whenever it is sent via end-user messaging technologies.