I have a doubt. The first parameter in snapshot settings

Hi
I have a doubt.
The first parameter in snapshot settings talk about relocate the snapshot folder. By default it is inside my website.
This is my question

if a suffer an attack to my web, and a robot or somebody enter in my site trying to get it down,I'll be able to acced to my snapshot folder if my site is hacked or get down?
or when any site is hacked this kind of folders are accessibles anyway?

Would you mind to suggest me something??
Thanks