these plugins will help secure your wordpress installs :
http://wordpress.org/extend/plugins/better-wp-security/
http://wordpress.org/extend/plugins/wp-security-scan
http://wordpress.org/extend/plugins/...curity-scanner
http://wordpress.org/extend/plugins/better-wp-security/
http://wordpress.org/extend/plugins/wp-security-scan
http://wordpress.org/extend/plugins/...curity-scanner
also take a look at http://en.blog.wordpress.com/2013/04/05/two-step-authentication/
first thing all applications like wp-, joomla needs to updated to latest version along with it's plugins/themes
