Katherine Carroll

Cleary Gottlieb Steen & Hamilton LLP

$ $$$

Pennsylvania Avenue Northwest 2112
Washington 20037 DC US

Katherine Mooney Carroll’s practice focuses on advising U.S. and international financial institutions on U.S. regulatory matters, including recent reforms pursuant to requirements under the Dodd-Frank Act; regulatory aspects of bank mergers and acquisitions and investments in banking organizations; M&A, cybersecurity and privacy matters; and compliance with U.S. sanctions and anti-money laundering laws.

Katherine served as Counselor to Secretary of Defense Ash Carter from April 2016 to January 2017. At the U.S. Department of Defense, she advised Secretary Carter on a broad range of issues, including cybersecurity and related intelligence matters, the transfer of detainees from Guantanamo Bay and lifting restrictions on service by women and transgender service members. She was awarded the Secretary of Defense Medal for Outstanding Public Service.

Katherine has extensive experience advising major U.S. and non-U.S. banking organizations on the Volcker Rule, heightened prudential requirements and the development of U.S. resolution plans or “living wills.” She also advises financial institutions in investigations and enforcement matters involving U.S. federal banking agencies, the Office of Foreign Assets Control and U.S. congressional committees.

Katherine joined the firm in 2001 and became partner in 2012; she left the firm to serve in the Defense Department in 2016 and returned as a partner in 2017. She worked in the firm’s Hong Kong and New York offices before moving to the Washington office in 2003.

Prior to studying law, Katherine worked as the executive director of the Open Society Institute in Uzbekistan and as the special assistant to the Assistant Secretary of Defense for International Security Policy at the U.S. Department of Defense.


  • Multiple major U.S. financial institutions including Citibank, Goldman Sachs, JPMorgan Chase and Morgan Stanley regarding compliance with the Volcker Rule.
  • Ongoing anti-money laundering advice to major global private equity firms, including drafting or revising anti-money laundering policies and procedures and issues that arise with potential investors.
  • A major Mexican financial institution regarding its anti-money laundering program and its U.S. correspondent relationships with U.S. banks.


  • Cyber Fellow, Center for Strategic and International Studies; this program brings together leaders in cybersecurity issues from the business, technology, legal and government sectors
  • Vice Chair, ABA Banking Law Subcommittee on Systemically Important Financial Institutions; and member, Federal Bar Association Banking Committee Executive Council
  • Teaches the legal segment of Harvard University’s online course, “Cybersecurity: Managing Risk in the Information Age”
  • Frequent speaker on U.S. regulatory reform and other bank regulatory issues, including at conferences hosted by the Institute of International Bankers, the American Bar Association and International Bar Association and the D.C. Bar


  • Yale Law School, J.D.2001
  • Harvard College, A.B, 1992.


  • District of Columbia
  • New York


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Pennsylvania Avenue Northwest 2112
Washington 20037 DC US
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Lina Stillman

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New York 10006 NY US