Serrin Turner

  • Partner
  • 1271 Avenue of the Americas
  • New York, NY 10020
  • USA
  • T +1.212.906.1330


Serrin Turner is a member of the firm’s Data Security & Privacy Practice, Complex Commercial Litigation Practice, and White Collar Defense & Government Investigations Practice.

A former federal prosecutor, Mr. Turner is an experienced trial and appellate lawyer who represents and advises clients on a wide range of cybersecurity and privacy-related matters, including:

  • Class-action litigation
  • Regulatory investigations
  • Commercial disputes
  • Incident response

Mr. Turner joined Latham following six years as an Assistant US Attorney for the Southern District of New York, where he served as the Office’s lead cybercrime prosecutor. In that role, Mr. Turner handled a wide range of cybercrime investigations and prosecutions, including matters involving computer hacking, data breaches, trade-secret theft, black-market websites, trafficking in stolen payment card and personal identity information, and money laundering through digital currencies.

While at the US Attorney’s Office, Mr. Turner also handled high-profile litigation involving US electronic surveillance statutes, including Amnesty International v. Clapper, a constitutional challenge to a key foreign-intelligence surveillance statute, as well In re Microsoft Search Warrant, a challenge brought by a leading email provider to a search warrant for data stored overseas.

Prior to his service at the US Attorney’s Office, Mr. Turner served in the Civil Division of the US Department of Justice. He is a two-time recipient of the Attorney General’s Award for Distinguished Service, the Justice Department’s second-highest award, and he has also received the John Marshall Award for Trial of Litigation, the Justice Department's highest award for trial litigators.


Mr. Turner's experience includes representing:

  • Facebook, in consolidated consumer class action arising out of a criminal attack on Facebook’s web platform affecting approximately 29 million users globally; defeated class certification of plaintiffs’ damages claims and successfully negotiated no-damages settlement
  • Zynga, a social game developer, in putative class action litigation related to a data breach allegedly affecting over 200 million users
  • An internet advertising intermediary, in putative class action litigation relating to alleged consumer data collection practices
  • A payment services provider in litigation concerning a large business email compromise incident
Government Investigations
  • A social media company in multiple privacy-related investigations brought by the FTC, state attorneys general, and data protection authorities in the EU and Asia
  • A data analytics provider in an FTC investigation into collection of mobile device user information
  • An entertainment company in a criminal investigation into alleged computer hacking by company employees
Incident Response
  • An educational services company in connection with a ransomware attack
  • A national retailer in connection with a breach of payment card data
  • A financial institution in connection with an intrusion by a suspected state-sponsored advanced persistent threat (APT) group
  • A computer equipment manufacturer in connection with a business email compromise incident

Thought Leadership

  • New Cyber Incident Reporting Requirements on the Horizon in the US -  April 11, 2022
  • Data Protection in Investigations -  February 02, 2022
  • Biden’s Cyber Executive Order: How It Could Impact Your Business -  June 08, 2021
  • Data Protection in Investigations -  March 04, 2021
  • The Commission’s Draft Updated Standard Contractual Clauses — A Close Look -  December 07, 2020
  • The EDPB’s Draft Data Transfer Guidance Following Schrems II – A Close Look -  November 19, 2020
  • Data Protection in Investigations -  April 23, 2020
  • The Pervasive Threat of Business Email Compromise Fraud — and How to Prevent It -  February 20, 2020
  • Financial Firms Beware: Dangers Lurk in the Cloud -  November 26, 2019
  • FTC Hearings Discuss the State of Data Security in the 21st Century -  December 18, 2018
  • Deep Dive on Deep Learning: FTC Considers Artificial Intelligence  -  November 20, 2018
  • FTC Hearing Evaluates Regulatory Oversight of Big Data and Privacy -  November 14, 2018
  • Boardroom Perspectives: 5 Key Takeaways on Cybersecurity -  June 01, 2018
  • New DoD Cybersecurity Requirements Go Into Effect -  December 21, 2017
  • New Executive Order on “Strengthening the Cybersecurity of Federal Networks and Critical Infrastructure” -  May 18, 2017
  • Ransomware Attacks: When Is Notification Required? -  April 26, 2017
  • US Magistrate Judge Upholds Search Warrants for Google Data Stored Overseas, “Shards” and All  -  February 15, 2017
  • NYSDFS Revises Cybersecurity Rules to Accommodate Industry Concerns -  January 05, 2017
  • Financial Institutions Await Response to Concerns Over NYSDFS’ Proposed Cybersecurity Rules -  December 22, 2016
  • China Issues Its First Network Security Law  -  November 21, 2016
  • Mitigating Cybersecurity Risks  -  November 10, 2016
  • Bitcoin Again Held to Be “Funds” for Federal Money Transmitting Purposes -  September 23, 2016
  • Virtual Currencies: Court Rules that Selling Bitcoin Is Not Money Transmitting and Selling Bitcoin to Criminals Is Not a Crime -  August 31, 2016
  • Are Changes in Store for the Stored Communications Act? -  July 01, 2016
  • Privacy Blog: “Hacking” Warrants: A Question of Procedure or Substance? -  May 25, 2016

Named to Incident Response 40 list, recognizing the “best data breach response lawyers” based on “input from numerous senior lawyers and other professionals in the field”

Cybersecurity Docket 2022
Bar Qualification
  • New York
  • JD, Harvard Law School, 2000
    magna cum laude
  • BA, Amherst College, 1995
    summa cum laude; Phi Beta Kappa
  • Financial Institutions
  • Technology
  • Communications Law
  • White Collar Defense & Investigations
  • Litigation & Trial Practice
  • Complex Commercial Litigation
  • Connectivity, Privacy & Information