If you&#x27;d prefer being harder to track over having Time Machine, push notifications, and several sync services work, then you can disable most of them; if you&#x27;d prefer services to work and usability of your applications, none of them.<p>If you&#x27;re not sure of the nuances (or the pros&#x2F;cons of using a &quot;secure&quot; Mac OSX install vs a secure Linux distro), you should research each of the services you&#x27;re disabling to at least appreciate the attack surface each surface adds to your machine.