The macOS system must disable iCloud Game Center.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-268523SRG-OS-000095-GPOS-00049APPL-15-002160SV-268523r1034509_rule2025-02-201
Description
This works only with supervised devices (mobile device management [MDM]) and allows to disable Apple Game Center. The rationale is that Game Center is using Apple ID and will share data on AppleID-based services; therefore, Game Center must be disabled. This setting also prohibits the functionality of adding friends to Game Center.
ℹ️ Check
Verify the macOS system is configured to disable iCloud Game Center with the following command: /usr/bin/osascript -l JavaScript << EOS $.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\ .objectForKey('allowGameCenter').js EOS If the result is not "false", this is a finding.
✔️ Fix
Configure the macOS system to disable iCloud Game Center by installing the "com.apple.applicationaccess" configuration profile.