Are you running a WordPress blog on your website space? If Yes, better be careful as it may be opened to hackers. However, there are some methods of prevention shared by fellow blogger; AshChuan. Her blog was recently hacked into on January 24 and luckily no data was loss.
She wrote in another post later of tips she found from Matt Cutts (Google employee) to your protect WordPress blog. And I seriously never noticed how much WordPress may be lacking in security.