Apache vhosts are not segmented or chroot()ed.

I get this on the advisor: Apache vhosts are not segmented or chroot()ed. Enable "Jail Apache" in the "Tweak Settings" area, and change users to jailshell in the "Manage Shell Access" area. Consider a more robust solution by using "CageFS on CloudLinux" Do I still have to do it, despite having Disabled Shell for all accounts?