Debevoise & Plimpton LLP is pleased to announce that Matthew L. Biben, former General Counsel of Consumer & Community Banking at JPMorgan Chase, and David A. O’Neil, former Acting Assistant Attorney General for the Criminal Division and former Deputy Assistant Attorney General for the Fraud Section at the Department of Justice, have joined the firm as litigation partners in our New York and Washington, D.C. offices, respectively.

At JPMorgan, Mr. Biben oversaw a wide array of legal and compliance issues in the mortgage, credit card, student loan and auto loan businesses and dealt routinely with federal and state regulators. Prior to joining JPM, he was the Deputy General Counsel of The Bank of New York Mellon, where he worked in roles with increasing responsibility for six years. Mr. Biben spent the first 12 years of his career as a prosecutor, first at the New York County District Attorney’s Office, and then as an Assistant U.S. Attorney in the Southern District of New York, where he pursued cases involving money laundering, securities fraud and RICO.

Mr. Biben is a member of the White Collar & Regulatory Defense Group as well as the Banking and Consumer Finance practices. He will counsel clients on a broad range of litigation matters on both the regulatory and enforcement side and will also serve as a trusted advisor to guide corporations through crises and make-or-break internal investigations.

Mr. O’Neil’s eight-year government career included increasingly high-profile positions within the DOJ. In 2014, he was designated by the President and Attorney General to lead the Criminal Division, where he was responsible for supervising more than 600 attorneys investigating and prosecuting the full range of federal crimes, including corporate malfeasance, cybercrime, fraud offenses and money laundering. Mr. O’Neil also served as Deputy Assistant Attorney General for the Fraud Section. In that capacity, he supervised more than 100 prosecutors engaged in nationwide enforcement against FCPA violations, healthcare fraud, and securities and financial fraud. Earlier in his career, he was an Assistant U.S. Attorney in the Southern District of New York.

Mr. O’Neil is a member of the firm’s White Collar & Regulatory Defense Group and the Cybersecurity & Data Privacy practice. He will advise clients on a broad range of compliance and enforcement-defense matters, including with respect to fraud, FCPA, anti-money laundering and sanctions, cybersecurity, congressional investigations and data privacy.