Our Team

william guenther

executive chairman


William Guenther is the ACSC's Executive Chairman and is Founder and CEO of Mass Insight Global Partnerships, a Boston-based consulting and research firm that creates competitive advantage through policy and partnerships of industry, universities and government. The firm’s focus on opportunities for pre-competitive, large scale technology R+D centers and collaborations shaped its Massachusetts Technology Road Map completed with Battelle in 2004 and the IT, Communications and Defense (ITCD) sector study produced with McKinsey & Co. in 2008. The Advanced Cyber Security Center (ACSC) grew out of recommendations by an Advisory Committee for the Mass Insight/McKinsey IT sector study. Mass Insight has guided the ACSC from business planning and a small-scale technical pilot to a successful launch as an independent self-governing nonprofit in 2011. The Center’s current membership includes 25 major industry, non-profit and government partners. The ACSC takes advantage of the New England region's unparalleled university, industrial and research resources to develop next- generation strategies for protecting large scale public and private IT infrastructure. Guenther chairs the ACSC Board, and Mass Insight provides ongoing strategy development and administrative support.

Guenther was also senior strategy consultant and founder of Mass Insight Education, a nonprofit leader in math and science education reform in the Commonwealth and working nationally on school turnaround strategies and district transformation. He is a graduate of Harvard College and the New York University Law School.


John mckenna

ciso chair


John McKenna is the CISO Chair and as a member of our Board of Directors since 2017. He is also President of RoundTable Security and retired as Senior Vice President and Chief Information Security Officer for Liberty Mutual Insurance in 2018. While there, he had enterprise-wide responsibility for Liberty Mutual’s global information security strategies and programs.  

John joined Liberty Mutual in 1979.  His career in Information Technology has included assignments as a software developer, data base analyst, program manager of enterprise data strategies and strategic development initiatives, Market CIO, and VP of IT Strategy and Planning. John holds a B.S. degree from the University of New Hampshire.

Jim Dinneen

Chief operating officer


Jim Dinneen is the Chief Operating Officer for the Advanced Cyber Security Center, building a trusted network in New England to improve cybersecurity through collaborative defense. Previously he was the Director of Industry Partnerships at the Northeastern University Cybersecurity and Privacy Institute, where he worked with companies, research institutions, laboratories, and government agencies to build relationships and develop a better understanding of evolving cyber challenges.

Prior to his role at Northeastern, Jim served as the Chief of Staff for the Private Sector Office at the U.S. Department of Homeland Security. He also served as Acting Assistant Secretary for the Private Sector, advising the Secretary of Homeland Security on business perspectives and capabilities on topics including cybersecurity, transportation security, and trade security. Jim served as the Director of Boards and Commissions in Presidential Personnel at the White House, and he served as the Special Assistant to the General Counsel at the U.S. Department of Commerce. Jim has also held roles as the Deputy Executive Director of Priorities USA and as New England Deputy Finance Director for Obama for America. He received his B.A. from Hamilton College and M.S. in Cybersecurity Policy and Governance from Boston College.