Andrew Tannenbaum

Andrew Tannenbaum

  • Lecturer in Law

Andrew Tannenbaum is General Counsel of Barclays Execution Services (BX), a global bank service company and dedicated provider of technology, operations and functional services to all of Barclays’ businesses, including consumer banking and payments operations around the world, as well as a top-tier global investment and corporate bank. 

In this capacity, Andrew provides dedicated legal support for Barclays' Group Chief Operating Officer and the COO organization. He leads global legal teams for Barclays over areas such as cybersecurity, data privacy, emerging technology such as artificial intelligence and digital assets, intellectual property and trade secrets, operational resilience, outsourcing transactions, third party contracts and supplier management, commercial real estate, security investigations, and crisis management. Andrew also advises on technology and operational issues that cut across numerous other areas such as financial crime, fraud, employment, and regulated financial services. 

Andrew was also IBM's first Chief Cybersecurity Counsel, a role in which he founded one of the earliest corporate global cyber legal teams. 

Prior to his time at IBM, Andrew served in the government for 10 years during both the Obama and Bush administrations, most recently as Deputy General Counsel of the National Security Agency. Andrew also served as Deputy Director of the Guantanamo Review Task Force, Senior Counselor and Assistant General Counsel in the White House Office of Management and Budget, Counsel to the Assistant Attorney General for National Security, Attorney-Advisor in the Office of Legal Counsel, and Trial Attorney in the Justice Department's Civil Division.

Andrew started his career as a litigator at Davis Polk & Wardwell and clerked for Judge Wilfred Feinberg of the United States Court of Appeals for the Second Circuit.

Andrew is a graduate of Columbia Law School ('00), where he was a James Kent Scholar and an editor of the Columbia Law Review, and Dartmouth College.