The macOS system must disable iCloud Private Relay.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-259525SRG-OS-000095-GPOS-00049APPL-14-002170SV-259525r958478_rule2024-12-042
Description
Enterprise networks may be required to audit all network traffic by policy; therefore, iCloud Private Relay must be disabled. Network administrators can also prevent the use of this feature by blocking DNS resolution of mask.icloud.com and mask-h2.icloud.com.
ℹ️ Check
Verify the macOS system is configured to disable the iCloud Private Relay with the following command: /usr/bin/osascript -l JavaScript << EOS $.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\ .objectForKey('allowCloudPrivateRelay').js EOS If the result is not "false", this is a finding.
✔️ Fix
Configure the macOS system to disable the iCloud Private Relay by installing the "com.apple.applicationaccess" configuration profile.