Upgrade WordPress or kiss good bye to your rankings
Running an old version of WordPress?
Then you Google rankings are at risk!
Old versions of WordPress have plenty of security vulnerabilities, hackers can install malware, or simply insert links in your content. Google doest want to send users to these hacked sites and cannot trust sites that have had links inserted throughout the site.
Recently DaveN a top seo saw what can happen when to your rankings when your site is compromised.
There is always a chance you site gets compromised in some way or another, but if your running a particularly vulnerable version of a CMS that is being highly abused then its probably easier and smarter for the likes of Google to just abandon your site(just as you probably have).
Google has already started warning webmasters using very old versions of a WordPress.
(this comes from )
Guess you could try and hide the version of WordPress you are using - would help stop the hackers from finding you, but dont hide it 100% and you could lose your trust with google - easier to just upgrade! If you manage lots of wordpress sites ther are tools about to upgrade all your sites from one interface.
