64GB for Mac Pro $699 • 128GB for Mac Pro $1929 • 32GB for iMac only $299.99
File Sharing and Remote Access
Turn OFF everything you don’t use.
There is simply no reason to needlessly invite trouble by enabling services you don’t use (though Mac security is excellent, tempting fate is not a good idea).
I use File Sharing between my Macs, so I leave it enabled.