1. WP Security Scan
This plugin scans your entire site for security issues and checks passwords, folder/file permissions, database security, WP version hiding and WP admin protection and security. Don’t use if you have a weak heart, you could get a fright.
Link - http://wordpress.org/extend/plugins/wp-security-scan/
2. Wordpress Database Backup
This is one of the plugins that you should almost have installed before you even think of installing your new theme. This plugin ...