The macOS system must disable Handoff.

STIG ID: APPL-14-005058  |  SRG: SRG-OS-000080-GPOS-00048 |  Severity: medium |  CCI: CCI-000213,CCI-000381,CCI-001443 |  Vulnerability Id: V-259567 | 

Vulnerability Discussion

Handoff must be disabled.

Handoff allows users to continue working on a document or project when the user switches from one Apple device to another. Disabling Handoff prevents data transfers to unauthorized devices.

Satisfies: SRG-OS-000080-GPOS-00048,SRG-OS-000095-GPOS-00049,SRG-OS-000300-GPOS-00118

Check

Verify the macOS system is configured to disable handoff with the following command:

/usr/bin/osascript -l JavaScript << EOS
$.NSUserDefaults.alloc.initWithSuiteName('com.apple.applicationaccess')\
.objectForKey('allowActivityContinuation').js
EOS

If the result is not "false", this is a finding.

Fix

Configure the macOS system to disable handoff by installing the "com.apple.applicationaccess" configuration profile.