The fix wordpress malware Codex has an outline of what permissions are okay. File and directory permissions can be changed via an FTP client or within the administrative page from your web host.
Truth is, there is actually no way if your site is targeted by a capable master of the script. What you are about to read below are a few measures you can take to minimize the threat to an acceptable degree. If your WordPress site is well protected odds are a hacker would prefer picking simpler victim, another.
I don't think there's a person out there that after learning how much of a problem WordPress hacking is that it is a fantastic idea to boost the security of their blogs. However is that when it comes to securing go to this site their blogs, bloggers seem to be stuck in this state.
As I (our untrue Joe the Hacker) understand, people have way too many usernames and passwords to remember. You have got Twitter, Facebook, your online banking, LinkedIn, two blog logins, FTP, internet hosting, etc. accounts that all include logins and passwords you will need to remember.
Oh . And by the way, I talked about plugins. Make sure it's a secure one, when you get a new plugin. Do not install any plugin because the owner is saying on his site that plugin can help you do this or that. Maybe use get a software engineer to examine it, or perhaps a test site to check the plugin. This way you'll know it is not a threat for you or your business.