I was reviewing Hardening WordPress at
http://codex.wordpress.org/Hardening_WordPress and noted that they suggested not advertising the WordPress version for security reasons.
I am using BulletProof Security that removes this; however I believe that MailChimp is also making this visible to potential attackers.
The links accompanying elements id='mailchimpSF_ie_css-css' and id='mailchimpSF_main_css-css' have href properties with ver=3.0.5 included. I'm assuming this is the WordPress version? Could this be removed from the links?