3.7 Ensure that security policies and operational procedures for protecting stored cardholder data are documented, in use, and known to all affected parties

PCI DSS v3.2.1 Questions and Answers Forum Protect Stored Cardholder Data
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3.7 Examine documentation and interview personnel to verify that security policies and operational procedures for protecting stored cardholder data are:
• Documented,
• In use, and
• Known to all affected parties.

Personnel need to be aware of and following security policies and documented operational procedures for managing the secure storage of cardholder data on a continuous basis.