Eun Young Choi

Senior Counsel for Cyber to the Deputy Attorney General
U.S. Department of Justice

Cybercrime Coordinator & Assistant United States Attorney
United States Attorney’s Office for the Southern District of New York

Eun Young Choi currently serves as Senior Counsel to the Deputy Attorney General, and is responsible for coordinating and advising on cyber-related issues across the Department of Justice, and representing the Department in the development of interagency cyber policy and strategy.  She previously served as an Assistant United States Attorney for the Southern District of New York, where she was the Office’s Cybercrime Coordinator and investigated and prosecuted cyber, fraud, and money laundering crimes, with a particular focus on network intrusions, digital currency, the dark web, and national security investigations. She served as the lead prosecutor in a variety of cases, including the investigation of a transnational organization responsible for hacking over a dozen financial companies (including J.P. Morgan Chase) and the theft of over 100 million customers’ data; an unlicensed Bitcoin exchange and the bribery of a former CEO of a credit union in furtherance of the Bitcoin exchange’s operations; a business email compromise scheme that targeted two U.S.-based multinational Internet corporations resulting in the loss of over $100 million; and the only U.S. prosecution brought in connection with the “Panama Papers.” Eun Young has represented the Government at numerous trials and appeals, including arguing the appeal before the Second Circuit in the case against Ross Ulbricht, the founder and chief administrator of the Silk Road underground website, which was responsible for the sale of over $200 million worth of illegal narcotics and other contraband over the Internet, using the Tor network and Bitcoin.

Prior to joining the Department of Justice, Eun Young was an associate at Williams & Connolly LLP, and served as a law clerk to the Honorable Reena Raggi of the United States Court of Appeals for the Second Circuit and the Honorable Naomi Reice Buchwald of the United States District Court for the Southern District of New York. She is a graduate of Harvard Law School and Harvard College.