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.
Install the secure your wordpress website Firewall Plugin. This plugin investigates requests that are net with straightforward WordPress-particular heuristics to identify and quit most obvious attacks.
The one I recommend, and the approach, is to use one of the generation and storage plugins available for your browser. RoboForm is liked by people, but I believe after a free trial period, you have to pay for it. I use the free version of Lastpass, and I recommend it for those of you who use Internet Explorer or Firefox. That will generate passwords for you.
1 thing you can take is to delete the default administrator account. This is critical because if you don't do it, a user name that they could attempt to crack is known by malicious user.
WordPress is one of the most popular platforms for self-hosted sites and sites. While WordPress is pretty secure from the box, there are always going to be people who want to create trouble by finding a way to split into sites blog or accounts to cause damage or inject hidden spammy links. That's why it's essential to make sure that your WordPress installation is as secure as possible.
Change admin username and your WordPress password, or your password, frequently and collect and utilize good WordPress security tips to keep hackers out!