Justin is the technical editor and lead author of "SQL Injection Attacks and Defense" (Syngress 2009), co-author of "Network Security Tools: Writing, Hacking, and Modifying Security Tools" (O'Reilly 2005), a contributing author to "Network Security Assessment: Know Your Network, 2nd Edition" (O'Reilly 2007), as well as a speaker at a number of conferences and events on security topics, including Black Hat USA, EuSecWest, OSCON, ISACA, RSA, SANS, OWASP, and the British Computer Society. He is the author of the open source SQLBrute blind SQL injection testing tool, and is the Chapter Leader for the London chapter of OWASP as well as a member of the OWASP Global Connections Committee.