The macOS system must disable the iCloud Calendar services.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-268487 | APPL-15-002012 | SV-268487r1034401_rule | CCI-000381 | medium |
| Description | ||||
| The macOS built-in Calendar.app connection to Apple's iCloud service must be disabled. Apple's iCloud service does not provide an organization with enough control over the storage and access of data and, therefore, automated calendar synchronization must be controlled by an organization-approved service. | ||||
| STIG | Date | |||
| Apple macOS 15 (Sequoia) Security Technical Implementation Guide | 2025-05-05 | |||
Details
Check Text (C-268487r1034401_chk)
Verify the macOS system is configured to disable iCloud Calendar services with the following command:
/usr/bin/osascript -l JavaScript << EOS
$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\
.objectForKey('allowCloudCalendar').js
EOS
If the result is not "false", this is a finding.
Fix Text (F-72418r1034400_fix)
Configure the macOS system to disable iCloud Calendar services by installing the "com.apple.applicationaccess" configuration profile.