Knowing a back end exists

[BJ Freeman]

while doing google
I found a lot of links to the actual back end of the ofbiz demo
this got me to wondering how more susceptible we are if the a search
engine finds a link to our backend.
I have a domain that even though the page is now gone, there are
attempts to hack the page for security. I get like 100s of posts and
gets to this page everyday, for different IP addresses.