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.
Let me shoot a scare tactics your way since scare tactics seem to be what drives some people to take fix malware problems free a bit more seriously, or at the very least start considering the issue.
Strong passwords - Do what you can to use a password, alpha-numeric, with upper and lower case and special characters. Easy to remember passwords are easy to guess!
Exclude pages - This plugin adds a checkbox,"include this page in menus", which is checked by default. If you uncheck it, the page will not appear in any listings of webpages (which contains, go to my blog and is ordinarily limited to, your webpage navigation menus).
You can make a firewall that blocks hackers from infiltrating your own blogs. The hacker is prevented by the firewall from coming to your files. You must have version of Apache. Upgrade your PHP. It's important that your system is full of upgrades.
However, I advise that you install the Login LockDown plugin top article instead of any.htaccess controls. Login requests will stop from being why not try these out allowed after three unsuccessful login attempts from a specific IP address for an hour. You can access your panel while away from your office, and yet you still have protection against hackers if you do so.