Alternate Office
  • 1114 Avenue of the Americas
  • New York, NY 10036
  • TEL: +1 212 506 3900
  • FAX: +1 212 506 3950
Areas of Practice
  • The George Washington University School of Law, J.D., with Honors, 1994, Managing Editor, The George Washington Law Review
  • Princeton University, A.B., 1990
Bar & Court Admissions
  • District of Columbia
  • New York
  • US District Court, District of Maryland
  • US District Court, Eastern District of Michigan
  • US District Court, Southern District of New York
  • US District Court, Eastern District of New York
  • US Court of Appeals for the Fourth Circuit

Jason M. Weinstein

1330 Connecticut Avenue, NW
Washington DC 20036
TEL: +1 202 429 8061
FAX: +1 202 429 3902
 Steptoe Blockchain Blog Steptoe Cyberblog

Jason M. Weinstein conducts internal investigations and represents companies and individuals in high-profile criminal matters. With 15 years of experience in senior positions at the US Department of Justice (DOJ), he helps corporations and boards to successfully navigate challenging government enforcement matters and defends individuals in criminal investigations and prosecutions. He is recognized across the United States as an authority on legal and regulatory issues involving digital currencies and blockchain technology.

Mr. Weinstein regularly directs internal investigations, tries complex cases, and represents clients in criminal investigations before the DOJ as well as other government agencies. As the former deputy assistant attorney general of the DOJ’s Criminal Division, he oversaw the most significant organized crime, financial crime, cybercrime, and intellectual property theft investigations in America. Before joining the Criminal Division, Mr. Weinstein served for nearly 10 years as an assistant US attorney in the US Attorney’s Offices for the Southern District of New York and the District of Maryland, where he investigated and prosecuted cases involving financial crimes, public corruption, racketeering, cybercrime, national security, narcotics, money laundering, immigration offenses, and violent crime. In the District of Maryland, where he served as Assistant Chief of the Criminal Division and as Chief of the Violent Crime Section, Mr. Weinstein prosecuted many of the highest-profile cases of the past decade in Baltimore. He brings this experience to bear in each client matter, many of which are extremely prominent. Among other recent matters, he represents Volkswagen in the criminal case arising from the diesel emissions controversy and led the independent investigation by the board of Pilot Flying J in response to allegations of fraudulent sales practices.

Mr. Weinstein is widely recognized for his command of the complex legal issues surrounding digital currencies and the blockchain.  He is the director of the Blockchain Alliance, a public-private forum established by a broad coalition of companies and organizations to help combat criminal activity involving digital currencies and blockchain technology.  He also sits on the strategic advisory board of BitFury, the leading full-service blockchain technology company and one of the largest private infrastructure providers in the industry, and serves on the advisory board of the Chamber of Digital Commerce and Coin Center.

Representative Matters

White-Collar Criminal Defense/Internal Investigations

  • Representing Volkswagen AG in diesel emissions criminal case.
  • Led internal investigation for board of Pilot Flying J, one of the nation’s largest private companies, in response to criminal fraud investigation.
  • Representing major financial institution in investigation of allegations of corruption by FIFA officials.
  • Represented a technology company in DOJ investigation of alleged government contract fraud. The government declined to pursue charges.
  • Represented technology company executive in wire fraud prosecution. The government agreed to dismiss all charges.
  • Represented director of non-profit corporation in DOJ investigation relating to government contracts. The government reversed debarment decision.
  • Represented official of prominent energy company in criminal investigation by DOJ. The government declined to pursue charges.
  • Represented official of global financial institution in DOJ investigation of manipulation of foreign exchange market. The government declined to pursue charges.
  • Representing former member of corporate board of directors in investigation of alleged money laundering and securities fraud.
  • Representing prominent healthcare company in connection with criminal investigation.
  • Representing current and former public officials in investigations by the DOJ, congressional committees, and Inspectors General.
  • Representing multiple prominent attorneys in connection with investigations by the DOJ.
  • Represented foreign government in connection with Internet gambling matter.
  • Represented global entertainment company in connection with motion picture piracy investigation.

Financial Technologies

  • Representing global digital currency exchange on legal and regulatory matters.
  • Advising leading blockchain transaction processing firm, digital currency exchanges, and bank on legal and regulatory issues.
  • Advising venture capital firms on legal and regulatory issues surrounding digital currency-related investments.
  • Advising prominent retailers on legal and business issues involved in accepting bitcoin and other digital methods of payment.
  • Advising leading early-stage bitcoin companies on legal, regulatory, and policy matters.
  • Representing digital currency exchange and bitcoin ATM companies in criminal investigations by DOJ.


  • National Law Journal's "Trailblazers in Cybersecurity," 2016
  • Washingtonian Magazine’s “Best Lawyers” in Cybersecurity, 2015
  • Legal 500 US, Dispute Resolution: Corporate Investigations and White-Collar Criminal Defense, 2014, 2016-2017
  • The Legal 500 US, Media, Technology & Telecoms: Cyber Crime, 2015
  • Washington, DC Super Lawyers, Criminal Defense: White Collar, 2016-2017
  • Recipient of the Department of Justice Director’s Award for Superior Performance as an Assistant United States Attorney
  • Recipient of the District of Maryland Award for Prosecution of Public Corruption

Select News & Events

Selected Publications

More Publications »