The fix hacked wordpress site Codex has an outline of what permissions are acceptable. Directory and file permissions can be changed either via an FTP client or within the page from your web host.
Everything you've worked for will proceed with it should your site's server return. You'll make no sales, get no visitors or signups to your site, until you have the website and in short, you are out of business.
Exclude pages - This plugin provides a checkbox,"include this page in menus", which can be checked by default. If you uncheck it, the page will not appear in any listings of webpages (which includes, and is usually restricted to, your page navigation menus).
As I (our untrue Joe the Hacker) understand, people have far too many usernames and passwords to remember. You've got Twitter, Facebook, your online banking, LinkedIn, two site logins, FTP, web hosting, etc. accounts that Get the facts all come with logins and passwords you will need to remember.
Software: If you've installed scripts search Google for'wordpress security'. You will get tips on the best way best to create your WP blog protected.