Here is a quick demo using WPScan to brute force into a plain old WordPress install. The concept is to show how trivial it is using open source and readily available tools to brute force a WordPress site.
WordPress Security Plugin - Post Hack Review
An overview of the Post-Hack features found within the Sucuri WordPress Security plugin.
WordPress Security - WordCamp Phoenix 2013
Dre Armeda presenting on WordPress Security at WordCamp Phoenix 2013. Dre is the CEO and Co-Founder of Sucuri Security