Chuck Willis is a Senior Technical Director with Mandiant (a FireEye Company) in Alexandria, Virginia. At Mandiant, Mr. Willis concentrates in application and network security, where he assesses the security of sensitive software and systems through penetration testing, static analysis, and "white box" review. His past experiences include study of source code analysis tools, security software engineering, computer forensics, network intrusion investigations, research, and tool development. Mr. Willis is the leader of the OWASP Broken Web Applications project, which distributes a virtual machine with known vulnerable web applications for testing and training.