Atsutane Dot Net

Blogs that have been compromised by this security vulnerability are typified by having links to spam destinations inserted onto the blog page. These link insertions may be invisible to casual observations, the links are often obscured by style attributes that render them invisible. These links are still seen by crawlers such as Technorati’s, Google’s and Yahoo’s. You can find these links by viewing the source of the blog pages or, when using Firefox, looking under “Tools” -> “Page Info” -> “Links”. Blogs hosted on wordpress.com are not affected by this issue; only blogs hosted on their own installations of WordPress from wordpress.org require concern.

If you are running any version of WordPress older than 2.3.3, you need to upgrade now. WordPress 2.3.2 and older have security holes that are being actively exploited by hackers and search engines like Technorati are de-listing hacked blogs.

Via Technorati Weblog