Unlinked web pages on a server - security hole?

Question

On my website, I have several html files I do not link off the main portal page. Without other people linking to them, is it possible for Jimmy Evil Hacker to find them?

Answer 1

If anyone accesses the pages with advanced options turned on on their Google toolbar, then the address will be sent to Google. This is the only reason I have can figure out why some pages I have are on Google.

So, the answer is yes. Ensure you have a robots.txt or even .htaccess or something.