Please consider setting the default /etc/fstab to include:

proc            /proc           proc    defaults,hidepid=2

This has the effect of keeping the specific activities, process ids,
command lines and parameters of a user from other users.

If you're not familiar with this, even if you don't have a second user
set up, you can observe the significance, by doing the following:

$ ps -aux # Lookee! I can see everything that user 'root' is doing!

# mount -o remount,defaults,hidepid=2 /proc

$ ps -aux # Forced to mind one's own business

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