John’s practice focuses on internal investigations, financial institution defense, and cybersecurity matters.

John regularly represents financial institutions, financial services companies, hi-tech and energy companies, retailers, and HIPAA-covered entities in complex regulatory enforcement matters and class actions. John was appointed to serve as the first Special Master for discovery in the Takata Airbag Products Liability Multi-District Litigation. He has extensive experience in matters involving cyber intrusions, cyber extortions, and computer breach events for a broad range of Fortune 500 companies and financial institutions. On multiple occasions, John has counseled and defended companies experiencing some of the largest reported data breaches.

He has led dozens of investigations in matters relating to financial crimes, alleged discriminatory practices, and insider abuses. John’s practice often involves defending entities against allegations of fraud and corruption, money laundering and Bank Secrecy Act violations, fair lending violations, UDAAP and Foreign Corrupt Practices Act violations.

A former Assistant United States Attorney for the Southern District of Florida, John prosecuted a wide variety of crimes including bank and wire fraud, narcotics trafficking and money laundering, and computer fraud. He tried several high-profile cases including an airplane hijacking, the armed kidnapping of a federal employee, a mail fraud scheme targeting several schools, and the attempted enticement of a minor over the internet.

John clerked for the Honorable Federico A. Moreno of the Southern District of Florida. He is a frequent speaker on cybersecurity and banking topics.

Relevant Experience

  • Defending hi-tech company in high profile multi-district litigation and parallel consolidated state litigations involving reported data breach.
  • Advised hi-tech company regarding several governmental agencies’ investigations into online fantasy sports.
  • Conducted internal investigation and defended company that employed alleged shooter at the Washington Navy Yard through investigations by law enforcement, defense agencies and Congress.
  • Led multiple investigations into cyber intrusion, cyber extortion, espionage, and data breach events including a high profile investigation involving an intrusion into an international bank that resulted in financial losses using ATMs.
  • Over the last few years, counseled and defended over 70 financial institutions in approximately 20 states during regulatory examinations on issues relating to consumer and regulatory compliance including fair lending, UDAAP, the Bank Secrecy Act, and cyber preparedness. He has responded to “15 day letters,” represented directors and officers in regulatory sworn statements, and has defended clients before the bank agency examiners and investigators, Department of Justice, and other agencies.
  • Represented over twenty financial institutions that were threatened or referred to the Department of Justice for lending violations.
  • Led multiple investigations into FCPA, theft of trade secrets, and financial fraud matters including for a large multi-national involving operations in South America, for an energy company regarding trade secret issues potentially involving an Asian nation-state actor, and for the potential acquirer of a company under investigation for operations in Asia.
  • Defended multiple clients in class actions involving data breach events, including actions involving Protected Health Information, account information fraud, computer tampering statutes, as well as common law contract and tort claims.
  • Represented retailers in class action involving collection of consumer data.
  • Provided training and guidance on ethics and compliance for multi-nationals including in the retail and healthcare fields.
  • Represents payment processors and financial institutions involving government investigations relating to consumer protection, corporate governance and allegations of insider abuse and misconduct.
  • Defended hospital service provider in healthcare fraud investigation convincing government to decline intervening in False Claims Act case.


  • Former Chair and Member, Southern District of Florida, Ad Hoc Committee on Attorney Admissions, Peer Review and Attorney Grievance
  • Member, Southern District of Florida, Committee for Reappointment of Magistrate Judges
  • Member, Southern District of Florida, Bench & Bar Planning Committee

Awards & Recognition

  • Named among Best Lawyers in America, Commercial Litigation, 2016. A description of the selection methodology can be found on Best Lawyers’ webpage.
  • Selected as a “Top Lawyer,” Corporate and Business Litigation, South Florida Legal Guide, 2015 and 2016
  • Selected as “Top Up & Comer,” South Florida Legal Guide, 2013-2014
  • Named among Law360 Privacy & Consumer Protection Rising Stars, 2013
  • Selected as a “Rising Star,” Florida, Super Lawyers magazine, 2009-2011, 2013. A description of the selection methodology can be found on Super Lawyers’ webpage.
  • Named one of the “Top 40 Under 40,” South Florida Business Journal, 2012
  • Named one of the “40 Under 40 Outstanding Lawyers” of Miami-Dade County, Cystic Fibrosis Foundation, 2011
  • Named among Florida’s “Legal Elite,” Commercial Litigation, Florida Trend magazine, 2010
  • Samuel J. Heyman Fellow for Public Service, Harvard Law School