Marcus J. Ranum is a world-renowned expert on security system design and implementation. He is recognized as the inventor of the proxy firewall, and the implementer of the first commercial firewall product. Since the late 1980's, he has designed a number of groundbreaking security products including the DEC SEAL, the TIS firewall toolkit, the Gauntlet firewall, and NFR's Network Flight Recorder intrusion detection system. He has been involved in every level of operations of a security product business, from developer, to founder and CEO of NFR.
Since joining Tenable in 2004, Mr. Ranum has been Chief Security Officer at Tenable, maker of the world renowned Nessus Vulnerability Scanner and Unified Security Monitoring enterprise solution. At Tenable, Mr. Ranum is responsible for research in logging tools, product training and product/best practice evangelism. In addition, Marcus is instrumental in the design of Tenable's Unified Security Monitoring enterprise solution.
Prior to Tenable, Mr. Ranum had served as a consultant to many FORTUNE 500 firms and national governments, as well as serving as a guest lecturer and instructor at numerous high-tech conferences. In 2001, he was awarded the TISC "Clue" award for service to the security community, and the ISSA Lifetime Achievement Award. Mr. Ranum was most recently senior scientist at Trusecure Corp., an international risk management firm. He serves as a technology advisor to a number of start-ups, established concerns and venture capital groups.