From Apple OS X 10.11 Security Technical Implementation Guide
Part of SRG-OS-000095-GPOS-00049
Associated with: CCI-000381
In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems.
Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component.
To support the requirements and principles of least functionality, the operating system must support the organizational requirements providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues.
Find My Mac must be disabled.
To check if the "Find My Mac" service is disabled, use the following command: /usr/bin/sudo /bin/launchctl print-disabled system | /usr/bin/grep com.apple.findmymacd If the results do not show the following, this is a finding. "com.apple.findmymacd" => true
To disable the "Find My Mac" service, run the following command: /usr/bin/sudo /bin/launchctl disable system/com.apple.findmymacd The system may need to be restarted for the update to take effect.
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