Mark Collier Author & Editor

Mark Collier is the Chief Technology Officer at SecureLogix corporation, where he directs the companies Voice Over IP (VoIP) security research and development. Mark also defines and conducts VoIP security assessments for SecureLogixs enterprise customers. Mark is actively performing research for the US Department of Defense, with a focus on developing SIP vulnerability assessment tools. Prior to SecureLogix, Mark was with Southwest Research Institute (SwRI), where he directed a group performing research and development in the areas of computer security and information warfare. Mark is a frequent speaker at major voice and security conferences. Mark has authored numerous articles and papers on VoIP security. Mark is also a founding member of the Voice Over IP Security Alliance (VoIPSA). Mark is a Magna Cum Laude graduate from St. Marys University, where he earned a Bachelors degree in Computer Science. David Endler is the director of security research for 3Com's security division, TippingPoint, where he oversees product security testing, the VoIP security research center, and their vulnerability research team. While at TippingPoint, David founded an industry-wide group called the Voice over IP Security Alliance (VOIPSA) in 2005. VOIPSAs mission is to help VoIP adoption by promoting the current state of VoIP security research, testing methodologies, best practices, and tools. David is currently the chairman of VOIPSA which boasts over 100 members from the VoIP vendor, carrier, and security space (http://www.voipsa.org). Prior to TippingPoint, David was the technical director at security services startup, iDefense, Inc. which was acquired by VeriSign. iDefense specializes in cyber security intelligence, tracking the activities of cyber-criminals and hackers, in addition to researching the latest vulnerabilities, worms, and viruses. Prior to iDefense, David spent many years in cutting edge security research roles with Xerox Corporation, the National Security Agency, and Massachusetts Institute of Technology. As an internationally recognized security expert, David is a frequent speaker at major industry conferences and has been quoted and featured in many top publications and media programs including the Wall Street Journal, USA Today, BusinessWeek, Wired Magazine, the Washington Post, CNET, Tech TV, and CNN. David has authored numerous articles and papers on computer security, and was named one of the Top 100 voices in IP Communications by IP Telephony Magazine. David is a Summa Cum Laude graduate from Tulane University where he earned a Bachelors degree and Masters degree in Computer Science.