The fix wordpress malware scanner Codex has an outline of what permissions are okay. File and directory permissions can be changed through an FTP client or within the administrative page from your web host.
No software system is resistant to vulnerabilities and bugs. Security holes will be found and bad men will do their best to exploit them. Keeping your software up-to-date is a good way once security holes are found, because their products will be fixed by reliable software vendors.
In case you ever want to migrate your website elsewhere, like a new hosting company, you'd be able to pull click to investigate this off without a hitch, description and also without needing to disturb your old site until the new one was set up and ready to roll.
It's time to sign up for a new Facebook accounts and use this person's name and identity to pose as your buddy. After I get it all set up, I'll be emailing you posing as your friend and asking you to be friends with me on Facebook (or Twitter, or whichever social site).
But realize that online security is. Do not just be the type that is reactive, take steps to begin today, protecting yourself. Don't let Joe the Hacker make your life miserable and turn everything in creating come crashing down in a matter of moments, that you've worked hard.