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Lieff, Cabraser, Heimann & Bernstein, LLPPartner
Mike Sheen
Pro

Mike Sheen

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275 Battery Street, 29th Floor, San Francisco, CA 94111

Cybersecurity & Data Privacy and Securities & Financial Fraud

About Mike Sheen

A partner in Lieff Cabraser’s San Francisco office, Mike Sheen has a practice focused on digital privacy, consumer protection, and securities and financial fraud.

Mike’s work in digital privacy litigation is varied, including representation of parents and children in a series of class action litigation (and a similar suit brought on behalf of the State of New Mexico) against children’s online game developers and ad networks including Disney, Viacom, and the makers of the popular Subway Surfers game (Kiloo and Sybo), over allegations the companies unlawfully collected, used, and disseminated the personal information of children who played the gaming apps on mobile devices. The cases culminated in over a dozen settlements that provide stringent and meaningful privacy protections to ensure defendants’ proactively protect children’s privacy, which the New York Times has observed “could reshape the entire children’s app market.”

Mike also assisted in Lieff Cabraser’s litigation against financial tech company Plaid Inc., which alleged that Plaid’s bank authentication services, used with several well-known payment apps such as Venmo and Cash App, unlawfully invaded consumers’ privacy by improperly taking their banking data without their consent or knowledge. That case culminated in a $58 million settlement that included injunctive relief to stop the conduct and purge all improperly obtained data.

More recently, Mike has been involved in the firm’s work against Google for its collection and tracking of user location information, despite users’ decision to disable a feature (Location History) that was supposed to prevent such tracking. That case has resulted in a proposed settlement for a $62 million and valuable injunctive relief, which is awaiting final approval by the court later this year. Separately, Mike currently represents consumers of various video streaming websites in cases alleging that those websites secretly, and without users’ consent, collected personal information through tracking software developed by Meta (known as the “Pixel”) in violation of the Video Privacy Protection Act.

Mike received his J.D. from the University of California, Berkeley School of Law in 2012. In law school, Mike served on the editorial boards for the Berkeley Technology Law Journal and the Asian American Law Journal. Prior to joining Lieff Cabraser, he clerked for Judge Dale A. Drozd of the United States District Court for the Eastern District of California.

Publications & Presentations

•Panelist, “What Makes a Good Securities Case: Essentials for Public Funds,” NCPERS Annual Conference & Exhibition (ACE), May 2024
•Speaker, “Tricks are for Kids: The Dark Side of Children’s Gaming Apps,” Harvard Plaintiffs’ Law Association (HPLA), March 2023

Honors & Awards

•“Ones to Watch,” Best Lawyers, 2026
•“Lawdragon 500 Leading Plaintiff Consumer Lawyers in America,” Lawdragon, 2025, 2026
•“Lawdragon 500 X - The Next Generation,” Lawdragon, 2023, 2024
•“Super Lawyer for Northern California,” Super Lawyers, 2024, 2025
•“Rising Star for Northern California,” Super Lawyers, 2021, 2022

In the News

•February 17, 2026
30 Lieff Cabraser Attorneys Recognized as Lawdragon “500 Leading Plaintiff Consumer Lawyers” for 2026
•August 21, 2025
36 Lieff Cabraser Lawyers Named to 2026 Best Lawyers Listings
•June 30, 2025
28 Lieff Cabraser Attorneys Selected as 2025 Northern California Super Lawyers and Rising Stars
•February 28, 2025
33 Lieff Cabraser Attorneys Recognized as Lawdragon “500 Leading Plaintiff Consumer Lawyers” for 2025
•July 2, 2024
13 Lieff Cabraser Lawyers Named to Lawdragon’s 2024 “Lawdragon 500 X - The Next Generation” List

 

Mike Sheen (San Francisco, California) View website

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Services

Areas of Law

  • Other 2
    • Cybersecurity & Data Privacy
    • Securities & Financial Fraud

Experience

  • Bar Admission & Memberships
    Admissions
    2012, California
    2013, U.S. District Court, Northern District of California
    2013, U.S. District Court, Southern District of California
    2015, U.S. Court of Appeals, Federal Circuit
    2018, U.S. Court of Appeals, Ninth Circuit
    2020, U.S. Court Of Appeals, Fifth Circuit
    2022, U.S. District Court, Central District of California
    2022, U.S. District Court, District of Colorado
  • Education & Certifications
    Law School
    University of California, Berkeley, School of Law - Berkeley Law, Berkeley, California
    Class of 2012
    J.D.

    Berkeley Technology Law Journal, Articles Editor
    2010-2011
    Executive Editor
    Other Education
    Asian American Law Journal, Senior Articles Editor

    Berkeley Law Admissions Committee, Student Member

    U.C. Berkeley Graduate Assembly, Funding Officer

    University of California, Berkeley, Berkeley, California
    B.A. 2004

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Attorneys FAQs

  • What year was this attorney first admitted to the bar?
    Mike Sheen was admitted in 2012 to the State of California.
  • How many attorneys are in this law firm?
    Lieff, Cabraser, Heimann & Bernstein, LLP has 100 attorneys at this location.
  • What law school did this attorney attend?
    Mike Sheen attended Berkeley Technology Law Journal, Articles Editor and University of California, Berkeley, School of Law - Berkeley Law, Berkeley, California.
  • What year was this attorney's law firm established?
    Lieff, Cabraser, Heimann & Bernstein, LLP was established in 1972.
  • Is this attorney listed in the Bar Register of Preeminent Lawyers?
    Mike Sheen is listed in the Antitrust Law, Aviation Law, Civil Rights, Civil Trial Practice, Environmental Law, Labor and Employment Law, Personal Injury, Product Liability Law, Securities Law and Toxic Torts section of the Bar Register of Preeminent Lawyers.

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