Daniel S. Marvin Partner

New York, NY

Phone: 646.870.1739 Fax: 212.804.7631 Download VCard

Daniel S. Marvin

Daniel is a partner in the New York office of Morrison Mahoney. His practice focuses on data privacy, data security and cyber-insurance matters, including advisory and litigation services relating to the development, modification and implementation of written information security plans, employee data security policies, third-party vendor contracts and related corporate governance policies. In addition, Daniel counsels clients in all aspects of data breach prevention, detection and mitigation, as well as compliance with international, federal and state privacy and data protection laws, including, GDPR, HIPAA, GLBA, NYSDFS and the FTC Act. 

Daniel also has extensive experience in the litigation of insurance and healthcare fraud actions, as well as in the representation of domestic and international financial institutions, insurance carriers, hedge funds, corporations, and individuals in litigation, mediation and arbitration matters.

Prior to joining private practice, Daniel served as an Assistant District Attorney in Bronx County, New York.

Daniel is often quoted in Law 360 on data privacy and cybersecurity topics and trends, and is a Member of the Rutgers University Cybersecurity Advisory Board.

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New York, NY Office

120 Broadway
Suite 1010
New York, NY 10271
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Areas of Practice

Bar Admissions

  • New York
  • New Jersey
  • United States District Court for the Southern District of New York
  • United States District Court for the Eastern District of New York
  • United States Court of Appeals for the Second Circuit


  • J.D. — Hofstra University School of Law
  • B.A. — Hofstra University

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