Matt Weeks has performed research in mathematics and information security. In his day job, he secures one of the largest networks in the world, and researches both offensive and defensive techniques. Also known as scriptjunkie, he has developed for the Metasploit framework, wrote the sessionthief MITM tool, has spoken at conferences such as DEFCON and Black Hat, and broke a cryptosystem based on chaos theory. He runs the site http://www.scriptjunkie.us/