Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic will be encrypted and signed.
To fix this configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Domain member: Digitally encrypt or sign secure channel data (always)" to "Enabled".
NIST 800-53: SC-12(2),SC-12(3),SC-13
PCI DSS v4.0: 2.2.7