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Board of Directors

Biography PhotoSteven R.  Polk
Chairman of the Board
Steven R.  Polk
Chairman of the Board


A thirty-eight year Air Force veteran, General Polk joined the Sourcefire board in August of 2006 after retiring in February of 2006 after serving as Inspector General of the Air Force since 2003. Previously, he served as Vice Commander, Pacific Air Forces, the number two officer in the command responsible for Air Force operations in the Pacific Rim region. Other postings included command of the 19th Air Force, of three fighter wings, and of a tactical fighter squadron. General Polk graduated fr... 
Biography PhotoJohn Burris
Chief Executive Officer
John Burris
Chief Executive Officer


John Burris is Chief Executive Officer and a member of the board of directors of Sourcefire, Inc. (Nasdaq: FIRE), the creator of Snort® and a global leader in intelligent cybersecurity solutions. Burris joined Sourcefire in July 2008 and brings over 20 years of leadership, management, sales and corporate development experience to the Company.

Before joining Sourcefire, Burris was a key contributor to the decade of growth achieved by Citrix Systems. Burris served as Senior Vice Pres... 

Biography PhotoMartin  Roesch
Chief Technology Officer
Martin  Roesch
Chief Technology Officer


Martin founded Sourcefire in 2001 and serves as its Chief Technology Officer. A respected authority on intrusion prevention and detection technology and forensics, he is responsible for the technical direction and product development efforts. Martin, who has 17 years industry experience in network security and embedded systems engineering, is also the author and lead developer of the Snort® Intrusion Prevention and Detec... 
Biography PhotoJohn Becker
Director
John Becker
Director


John Becker was the Chief Executive Officer (CEO) of Approva Corporation from 2008 until its acquisition by Lawson Software in September 2011. Prior to Approva, Mr. Becker was Chief Executive Officer of Cybertrust, acquired by Verizon Business in 2007. With more than 20 years of industry expertise, Mr. Becker is a seasoned technology professional with a demonstrated and extensive track record of success.

Prior to Cybertrust, Mr. Becker provided consultation to venture capital and ... 

Biography PhotoCharles E. Peters, Jr.
Director
Charles E. Peters, Jr.
Director


Charles E. Peters, Jr. is Executive Vice President and Chief Financial Officer of Red Hat, Inc. Prior to joining Red Hat, from 1995 to 2003 Mr. Peters held the position of Chief Financial Officer with NYSE-listed multi-national Burlington Industries, Inc. From 1991 to 1995, Peters was Senior Vice President Finance at Boston Edison Company, a NYSE-listed electric power company serving the Boston area. Prior to that, he served as Chief Financial Officer at GenRad, Inc., a NYSE-listed multi-nationa... 
Biography PhotoMichael  Cristinziano
Director
Michael  Cristinziano
Director


Michael Cristinziano joined the Sourcefire board of directors in March 2009 and is currently Corporate Vice President, Strategic Development at Citrix Systems, Inc. (Nasdaq: CTXS), where he is responsible for several corporate finance functions, including M&A strategy and execution, technology licensing, strategic venture investments and investor relations. Michael also serves as a member of the Citrix CTO Office. Prior to joining Citrix Systems in 2003, Mr. Cristinziano was a Managing Direct... 

Biography PhotoArnold L. Punaro
Director
Arnold L. Punaro
Director


Maj. Gen. Arnold L. Punaro (ret.) was elected to our Board of Directors in May 2010. Punaro also served on the Sourcefire Board from January 2007 to May 2009. Punaro is currently Chief Executive Officer of The Punaro Group, LLC, a Washington-based firm offering government relations, strategic planning, federal budget and market analysis, communications, crisis and emergency management, business development and sensitive operations consulting. Formerly an Executive Vice President for Science Appl... 
Biography PhotoTim  Guleri
Director
Tim  Guleri
Director


Tim A. Guleri joined our board of directors in June 2002 and is currently a Managing Director with Sierra Ventures. Before joining Sierra Ventures in February 2001, Mr. Guleri was the Vice Chairman and Executive Vice President with Epiphany, Inc. from March 2000 until February 2001; the Chairman, CEO and Co-founder of Octane Software Inc. from September 1997 until March 2000; Vice President of Field Operations, Product Marketing with Scopus Technology Inc. from February 1992 until February 1996 ...