Joseph B. Shumofsky is an accomplished trial lawyer and Fellow of the American College of Trial Lawyers.  He is Co-Chair of the Sills Cummis & Gross White Collar Criminal Defense Practice Group and a Member of the Firm’s Litigation, Corporate Investigations and Integrity, and Tax Fraud and Controversy Practice Groups. His practice focuses on white collar criminal defense, internal corporate investigations, complex business disputes, and counseling corporations that are victims of white collar crimes.  Mr. Shumofsky has successfully represented defendants in connection with various criminal charges and has conducted multiple corporate internal investigations.  He also is the Chair of the Firm’s Cyber Security and Data Privacy Practice and has counseled companies in establishing appropriate data privacy and cybersecurity policies and in responding to cyber security incidents.

Mr. Shumofsky’s practice draws on his previous experience as a federal prosecutor and in private practice.  Before joining Sills Cummis & Gross, he was a federal prosecutor for nine years, serving in the United States Attorney’s Office in the District of New Jersey and in the Southern District of Florida, serving primarily in each office’s Economic Crimes Unit.  As a federal prosecutor, Mr. Shumofsky investigated, managed and prosecuted a wide variety of white collar cases, including cases involving financial fraud, bank fraud, tax fraud, securities fraud, insurance fraud, health care fraud, identity theft, and cybercrimes.  He also successfully tried numerous federal jury trials to verdict.  Mr. Shumofsky was recognized for his exceptional work by several federal law enforcement agencies, and he received the Special Achievement Award from the United States Attorney’s Office, District of New Jersey.

Prior to his Government service, Mr. Shumofsky spent approximately seven years in private practice in New York at Dorsey & Whitney and, previously, at Simpson Thacher & Bartlett, focusing on complex commercial litigation matters for businesses and individuals.  He also clerked for Honorable David N. Edelstein, United States District Judge, Southern District of New York.


  • White Collar Criminal Defense
  • Cybersecurity and Data Privacy
  • Tax Fraud and Controversy
  • Corporate Investigations and Integrity
  • Litigation
  • Cannabis

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Representative Matters

    • Defended corporate executive of consulting firm in qui tam investigation against allegations of fraudulent invoicing for government work, resulting in no charges being brought against the executive.
    • Defended individual against federal charges arising out of the alleged fraudulent purchase of computer equipment, leading to the dismissal of all charges.
    • Defended teacher in connection with federal health care fraud charges and negotiated favorable resolution with Government.
    • Represented home services company against state claims of consumer fraud.
    • Conducted internal investigation for international trading and investment company into allegations that corporate officer of affiliated company engaged in fraudulent business transactions.
    • Conducted internal investigation for public pharmaceutical company concerning allegations of making a fraudulent public filing.
    • Represented and counseled large hospital system in connection with litigation alleging illegal kickbacks.
    • Represented national paint company in lawsuit to protect company property from claims of eminent domain.
    • Represented large hospital system in connection with internal investigation of employee theft and subsequent federal prosecution of employee.
    • Counseled company in response to ransomware attack, including assisting with complying with notification obligations to customers, assessing regulatory exposure, and overseeing remediation efforts.
    • Counseled technology company with annual rollout of data privacy and cyber security policies and training.

Court Admissions

  • U.S. District Court, District of New Jersey
  • U.S. District Court, Southern District of New York
  • U.S. District Court, Eastern District of New York
  • U.S. District Court, Western District of New York
  • U.S. Bankruptcy Court, Western District of New York


In the News


Rankings and Recognition

  • Selected for inclusion in:
  • The Best Lawyers in America®* 2021-2024, Commercial Litigation; Criminal Defense: White-Collar
  • Chambers USA: America’s Leading Lawyers for Business®* 2024, New Jersey Litigation: White-Collar Crime & Government Investigations

* See Award Methodology. No aspect of this advertisement has been approved by the Supreme Court of New Jersey.


  • Fellow, American College of Trial Lawyers

  • Member, Association of Criminal Defense Lawyers of New Jersey
  • Member, Association of the Federal Bar of New Jersey
  • Member, International Association of Privacy Professionals

  • Member, American Bar Association


  • J.D., Fordham University School of Law

    Member, Fordham Law Review
    Editor-In-Chief, Fordham Moot Court Board

  • B.A., Cornell University

Bar Admissions

  • New Jersey
  • New York