Photo of Matthew J. Gardner


J.D., magna cum laude, Georgetown University Law Center

B.A., Loyola University Maryland 

Law Journals

Notes Editor, Georgetown Law Journal


Law Clerk for the Honorable J. Frederick Motz, U.S. District Court for the District of Maryland (2000-2001)

Bar and Court Admissions

District of Columbia Bar

California Bar

U.S. Court of Appeals for the Fourth and Ninth Circuits

U.S. District Courts for the District of Maryland, Northern District of California, and Southern District of California

Matt’s practice focuses on defending criminal and civil government enforcement actions, managing internal investigations regarding data breaches, and providing advice and litigation assistance on cybersecurity issues. He advises companies on compliance with the Communications Assistance for Law Enforcement Act (CALEA), the Electronic Communications Privacy Act (ECPA), the Computer Fraud and Abuse Act (CFAA), and the Wiretap Act. As a former federal prosecutor, Matt has practical experience in complex investigative and enforcement matters, which allows him to help limit his clients’ risk and liability. His experience conducting numerous jury trials allows him to develop an effective litigation strategy to achieve his clients’ goals.

Representative Experience

  • Successfully obtained summary judgement in FCA procurement fraud case seeking over $25 million in damages in matter in the Eastern District of Virginia. 
  • Advised client on data breach resulting in the theft of millions of dollars of copyrighted materials, including providing guidance on conducting the internal computer forensic investigation and collecting evidence to support an investigation by the Department of Justice.
  • Advised client after the FBI determined that a DDOS attack had been launched by a third-party using the client's network.
  • Assisted multiple clients on creating cyber incident response plans.
  • Led investigation into sophisticated international cybercrime organization.
  • Served as lead prosecutor in dozens of investigations involving computer crimes.
  • Litigated over 20 federal felony jury trials.
  • Represented several directors and officers of Silicon Valley companies in connection with internal investigations and government enforcement actions.

Professional Experience

  • Assistant U.S. Attorney, U.S. Attorney’s Office for the Eastern District of Virginia (2012-2015) and Southern District of California (2004-2006, 2008-2012)
  • Private law practice (2001-2003, 2006-2008)
  • New Hampshire Press Secretary, Governor Howard Dean’s Presidential Campaign (2003-2004)


  • Recognized as one of the nation's top Cybersecurity & Data Privacy Trailblazers by The National Law Journal (2015)

News & Insights