macOS 15 - Sequoia
The macOS system must enforce auto logout after 86400 seconds of inactivity
Description
Auto logout must be configured to automatically terminate a user session and log out after 86400 seconds of inactivity.NOTE: The maximum that macOS can be configured for autologoff is 86400 seconds.[IMPORTANT]====The automatic logout may cause disruptions to an organization's workflow and/or loss of data. Information system security officers (ISSOs) are advised to first fully weigh the potential risks posed to their organization before opting to disable the automatic logout setting.====
Check
Verify the macOS system is configured to enforce auto logout after 86400 seconds of inactivity with the following command:/usr/bin/osascript -l JavaScript << EOS$.NSUserDefaults.alloc.initWithSuiteName('.GlobalPreferences')\.objectForKey('com.apple.autologout.AutoLogOutDelay').jsEOSIf the result is not "86400", this is a finding.
Fix
Configure the macOS system to enforce auto logout after 86400 seconds of inactivity by installing the "com.apple.GlobalPreferences" configuration profile.