Maria Efaplomatidis


Maria Efaplomatidis is a partner in the New York office of Lewis Brisbois and a member of the Data Privacy & Cybersecurity Practice. Her practice centers on data breaches, privacy violations, and cybersecurity incidents. She assists clients with navigating the complex process of responding to the loss, theft or compromise of protected and confidential information. She also advises clients on U.S. data protection law and GDPR compliance, and assists clients with risk management.

Maria has extensive experience counseling domestic and foreign insurance carriers. She regularly assists and defends companies concerning high exposure claims and regulatory matters arising from fraud, embezzlement, and other criminal misconduct. Her experience has provided her with unique insight and critical exposure to the data and privacy concerns affecting financial services firms. She has handled numerous cases resulting from data security and privacy liability events, including employee data theft. Being a front line of risk veteran, Maria stays abreast of the growing threat of cybersecurity attacks and extortion, including ransomware.

In addition to her data privacy work, Maria has acquired experience handling professional liability matters with a focus on accounting firms, including the Big Four firms. She has directed high profile litigation, arbitrations, and regulatory matters centered on fraud, conspiracy, securities violations, and malpractice. Parallel to her litigation experience, Maria has routinely managed SEC and DOJ investigations and enforcement proceedings. She has also recently consulted with the U.S. Small Business Administration regarding fraud risk factors affecting loans issued during the COVID 19 pandemic.

Foreign Language Capabilities


Professional Presentations

Panelist, "The Anatomy of a Breach," Intouch Live Cyber Security & Data Privacy Symposium, New York, 05.13.22


  • State Bar Admissions
    • New Jersey
    • New York


New Jersey

New York


  • NY Bar Association
  • PLUS


St. John’s University School of Law

Juris Doctor, cum laude

  • Published in Journal of Legal Commentary

St. John’s University

Bachelor of Arts, magna cum laude

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