I have had two WordPress blogs hacked into in the past. That was at a time when I was doing very little internet marketing, and until I found time to address the situation (months later), these sites were penalised in the search engines. They were not removed, but the rankings were reduced.
The repair hacked wordpress site 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 the web host.
You can look. If your site is suddenly hacked by hackers, you can restore your site with the use of your files and change everything that has to be changed.
Keep your WordPress Installation up to date - One of the simplest and most valuable tasks you can do yourself is to ensure that your WordPress installation is upgraded. WordPress provides you a notice on your dashboard, so there's really no reason not to do this.
It's time to sign up for a Facebook accounts that is new and use this person's name and identity to pose as your friend. Once I get it all set up, I'll be telling you posing as your friend and asking you to be friends with me on Facebook (or Twitter, or whichever societal site).
Oh . And incidentally, I was talking about plugins. Make sure it's a secure blog one, when you get a plugin. Don't install any plugin just because the owner is right here saying on his site that plugin can help you do that or this. Use get a software engineer to examine it carefully, or perhaps a test blog useful source to check the plugin. This way you'll know it isn't a threat for your business or you.