Cavallarin explains it in a bit more detail on his blog[1]: The first legit feature is automount (aka autofs) that allows a user to automatically mount a netwo

Cavallarin explains it in a bit more detail on his blog[1]: The first legit feature is automount (aka autofs) that allows a user to automatically mount a network share just by accessing a "special" path, in this case, any path beginning with "/net/". [..] [1] https://www.fcvl.net/vulnerabilities/macosx-gatekeeper-bypass https://www.fcvl.net/vulnerabilities/macosx-gatekeeper-bypas... Assumably commenting out the line quoted by gp disables automount for network shares which start with "/net" in their path.