Free Tool: 3.4. Render PAN Unreadable in Storage

Storage of PANs must be protected properly both in primary and backup storage


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This section of PCI DSS requires that all PANs (primary account numbers) that are stored must be encrypted properly to prevent attackers from stealing PANs in case of data breach. Different mechanisms depend on the data storage type being used. Action1 covers the endpoint-level aspect of this section of PCI to make sure that endpoints in the CDE are properly protected and remain compliant.

3.4.1.a: Full Disk Encryption Authentication
    Verify that full disk encryption authentication process is implemented separately from native OS authentication
3.4.1.c: Encryption of Removable Media
    Verify that cardholder data on removable media is encrypted wherever stored

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3.4. Render PAN Unreadable in Storage

Find more information on 3.4. Render PAN Unreadable in Storage at Microsoft TechNet.