Domain Member: Digitally encrypt or sign secure channel data (always)

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When a device joins a domain, a machine account is created. After it joins the domain, the device uses the password for that account to create a secure channel with the domain controller for its domain every time it restarts. Requests that are sent on the secure channel are authenticated—and sensitive information such as passwords are encrypted—but the channel is not integrity-checked and not all information is encrypted. If a device is configured to always encrypt or sign secure channel data but the domain controller cannot sign or encrypt any portion of the secure channel data, the computer and domain controller cannot establish a secure channel. If the device is configured to encrypt or sign secure channel data, when possible, a secure channel can be established, but the level of encryption and signing is negotiated.

https://www.stigviewer.com/stig/windows_server_2016/2018-03-07/finding/V-73633
https://docs.microsoft.com/en-us/windows/security/threat-protection/security-policy-settings/domain-member-digitally-encrypt-or-sign-secure-channel-data-always


stig-medium-server
domaincontroller
compliance-server
security-desktop
security-server
nist800-171
cmmc-l2