It's also important to change your password and admin username if someone will help you with your site and needs your password and admin username to login to do the job. After all the work is complete, admin username and your password changes. Even if the person is trustworthy, someone in their company may not be. Better to be safe than sorry!
The fix malware problems free Codex has an outline of what permissions are acceptable. Directory and file permissions can be changed either through an FTP client or within the page from your hosting company.
I might find it somewhat harder to crack your password if you're among the ones that are proactive. But if you're among those responsive ones, I might get you.
I don't think there is a person out there that after learning just how much of a problem WordPress hacking is that it is a fantastic idea. Something I've noticed through the years is that when it comes to securing their blogs, bloggers seem to be stuck in directory this state that is reactive.
You can create a firewall that blocks hackers. The hacker is prevented by the firewall from coming to your own files. You must have version of Apache. Upgrade your PHP as well. It is important that your system is always full of the original source upgrades.
Always bear in mind that the security of your blogs depend on how you handle them. Be certain that you follow these strategies that are simple to avoid exploits and hacks on your blogs and sites.