Mark Dowd is a principal security architect at McAfee, Inc. and an established expert in the field of application security. His professional experience includes several years as a senior researcher at Internet Security Systems (ISS) X-Force, and the discovery of a number of high-profile vulnerabilities in ubiquitous Internet software. He is responsible for identifying and helping to address critical flaws in Sendmail, Microsoft Exchange Server, OpenSSH, Internet Explorer, Mozilla (Firefox), Checkpoint VPN, and Microsoft' s SSL implementation. In addition to his research work, Mark presents at