I have had two WordPress blogs hacked into previously. That was at a time when I was doing almost no internet marketing, and until I found time to deal with the situation (weeks later), these sites were penalized in the main search engines. They weren't eliminated, no matter how the ratings were reduced.
Security plugins can be purchased by you to your WordPress blog. There are security plugins out there that guarantees optimum security for your blog. One is called fix wordpress malware plugin Scan. The system is continuously scanned by this plugin for enhancing the security. Additionally, it updates the safety that new hackers cannot penetrate the system.
If you're among the ones, I might find it somewhat harder to crack your password. But if you're one of those ones that are responsive, I might just get you.
Exclude pages - This plugin provides a checkbox,"include this page in menus", which can be checked by default. If you uncheck it, the page won't appear in any listings of pages (which includes, and is usually limited to, your page navigation menus).
Another step to take to make WordPress secure is to always upgrade WordPress to the latest version. The reason behind this is that there also come fixes for security holes original site which makes it essential to upgrade early.
I prefer to use a WordPress plugin to get the job done. Just make sure is in a position to do backups, has restore and can replicate. Be sure it is often updated to keep pace. There is not any use in backing up your data and not functioning.