Mark Seifert | Brunswick Group
Mark Seifert
The world of cyber is messy. We clarify, simplify and translate to help you make smart decisions.

Mark Seifert

Partner, Cybersecurity, Data & Privacy Global Lead, Washington, D.C.

Mark co-chairs the global Cybersecurity, Data & Privacy practice, helping clients prepare for and respond to cybersecurity incidents. A certified privacy professional and a former regulatory attorney, Mark offers insights and practical advice to clients addressing complex privacy issues. In addition to his work in cybersecurity and privacy, he also advises clients on a variety of matters including corporate communications, media relationships, thought leadership, and government affairs.

Mark has extensive experience within the US government, including 16 years with the Federal Communications Commission as well as service in all three branches of government. At the Department of Commerce, he oversaw a $5bn broadband infrastructure program.  Mark also served as counsel to the House Committee on Energy and Commerce on telecommunications and technology matters.
Mark has led retained accounts, projects, and transactions with both public and privately-owned clients including AT&T, Facebook, GE, Abbott, and Southwest.  He also serves as a board member for the Center for Democracy and Technology.

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