Viola Trebicka is the litigator clients call when the stakes are high, and failure is not an option. A partner in the firm’s Los Angeles and New York offices, Viola has a national litigation and trial practice, with a particular focus on high-stakes commercial and technology matters—including a prominent practice defending companies at the frontier of artificial intelligence. She has successfully defended Fortune 100 companies in some of their most sensitive and high-profile disputes and is especially experienced in cases involving liability from AI use, data privacy, consumer protection, and class action litigation.
Viola also serves as co-chair of the firm's Data Privacy and Security Practice. Her extensive experience spans defeating privacy claims, opposing class certification, managing mass arbitrations, handling data breach remediation and litigation/settlement, and resolving complex data and intellectual property cases through discovery and trial.
She has delivered major wins for clients, including, most recently, a complete class certification denial in Calhoun v. Google and defeating a Rule 23(b)(3) class certification in Brown v. Google, a high-stakes private browsing user data privacy case against Google, achieving a motion to dismiss victory on behalf of Kaseya in a data breach liability action, and attaining a complete defense verdict in a patent trial for Novatel and Verizon.
In recognition of her experience and victories, Viola is ranked in Chambers for Privacy & Data Security and by Legal 500 USA in the Data Privacy and Data Protection field (Media, Technology, and Telecoms) in 2023, 2024, 2025, and 2026. Viola was also recognized by the Daily Journal as one of the top women lawyers in California (2026) and won the 2024 California Legal Awards in the category “Women Leaders in Tech Law.”
- Bumble
- Cognizant
- Figure AI
- Lakeview
- Scout AI
- Snowflake
- Verisk
- In re Meta Android Privacy Litigation. Currently defending Google in a consolidated putative privacy class action alleging that Meta exploited features of Google’s Android operating system to de-anonymize users’ web browsing activity. Google’s motion to dismiss successfully narrowed the case to a single negligence claim against Google.
- Kogon et al. v. Google LLC. Currently defending Google LLC in in a high-profile AI privacy and copyright putative class action brought by independent musicians, songwriters, and producers alleging that Google copied millions of copyrighted sound recordings, musical compositions, and lyrics—including clips drawn from YouTube—to train its Lyria generative-music models and ProducerAI platform.
- Marin v. Alphabet Inc. Currently defending Alphabet Inc. and Google LLC in a AI privacy putative class action brought by prominent broadcast journalists, investigative podcasters, and audiobook narrators alleging that Google extracted their biometric voiceprints from recordings of their voices to build the foundational voice models powering Gemini Live, NotebookLM Audio Overviews, YouTube auto-dubbing, and Google Cloud Text-to-Speech.
- Satrustegui v. Ramparts, LLC d/b/a Luxor Hotel & Casino, et al. Currently representing dating app Bumble in an action arising from the death of a Bumble user allegedly killed by another user he met through the app at the Luxor Hotel and Casino in Las Vegas. In January 2026, the Court granted the motion in substantial part, compelling the majority of Plaintiffs’ claims to arbitration—a significant early victory for Bumble.
- Gordon v. Bumble Inc. et al. Currently defending Bumble in this dating app liability case filed in Denver District Court. Plaintiff seeks to hold Bumble liable for an alleged sexual assault by a man she claims to have met on Bumble.
- Idris et al v. Lakeview Loan Servicing, LLC Currently defending Lakeview Loan Servicing in a class action alleging that Lakeview’s website improperly disclosed personal financial information through third-party tracking software. We successfully sought dismissal on Article III grounds in federal court, and we are now defending the client in California state court.
- Gruendel v. Figure AI. Currently representing Figure AI, a cutting-edge humanoid robotics startup, in defending an employment lawsuit filed by its former Principal Robotic Safety Engineer.
- Clorox v. Cognizant. Currently defending Cognizant in a $380 million lawsuit wherein Clorox alleges that Cognizant’s IT service desk enabled an August 2023 cyberattack. Cognizant's demurrer successfully dismissed Clorox’s fraud claim at the pleading stage.
- Brown v. Google. defending Google in a high-profile privacy class action alleging that Google improperly obtains browsing data when users have not opted to sync the Google Chrome browser with their Google account. The complaint asserts various federal and state claims, including wiretapping claims, state constitutional and common law privacy claims.
- JPM v. Argus, Verisk, and Transunion. Currently defending Verisk Analytics, Inc. in a complaint by JPMorgan Chase alleging trade secret misappropriation, and pending in the District of Delaware.
- Snowflake MDL. Currently defending Snowflake Inc. in a series of putative class actions arising out of the alleged data breach of Snowflake customers’ accounts (AT&T, Ticketmaster/Livenation, Neiman Marcus, Advance Auto Parts, and LendingTree). The lawsuits are pending in the District of Montana and various other districts around the nation.
- Atlas v. Yardi. Currently defending Yardi Systems in a mass action alleging violations of Daniel’s Law and pending in the District of New Jersey. Defended Cyderes and Fishtech Group, LLC , a leading cycle cyber security services provider, in a lawsuit brought by its customer Apex Tool Group in the aftermath of a cyberattack Apex suffered.
- Obtained dismissal of claims against Kaseya US LLC, an information technology managements and security software provider for managed service providers and small to medium sized business, in a lawsuit in Florida federal court arising from a ransomware attack against Kaseya perpetrated by the cyber terrorist gang REvil in July 2021.
- Successfully defended Google in a high-profile privacy class action regarding various Google offerings including Chrome, Google Analytics, and Google Ad Manager. The complaint asserted federal and state wiretapping claims, as well as state constitutional and common law privacy claims, on the allegation that Google receives users’ communications with websites and personal information when users are browsing the web in “private” or “incognito” mode. Defeated the Rule 23(b)(3) class allegations and settled Rule 23(b)(2) class for no monetary relief.
- Represented a putative class of individuals who claim they paid ATM access fees at anticompetitively high levels as a result of an unlawful agreement among the dominant ATM networks and the nation’s largest retail banks.
- Obtained a complete defense jury verdict of no-infringement on four asserted patents for defendants Verizon Wireless and Novatel Wireless in a patent infringement matter relating to mobile hand-off and relay technology.
- On behalf of Songkick, sued Ticketmaster and Live Nation for antitrust violations in the artist presale ticketing services market. After completing fact and expert discovery, defeated the defendants’ summary judgment motion in its entirety (which no antitrust plaintiff had previously been able to accomplish against Ticketmaster) and subsequently resolved the case two weeks before trial with a $110 million settlement payment and acquisition of Songkick’s assets for a confidential amount.
- Successfully defended Barnes & Noble in class action alleging various violations of the Labor Code, including failure to provide meal breaks and rest breaks and failure to pay overtime. The Court denied certification in its entirety.
- For Mattel, obtained order from Ninth Circuit vacating verdicts of liability for alleged trade-secret misappropriation and damages award of more than $170 million; separately defeated antitrust claims purportedly worth $3 billion and RICO claims with similar alleged stakes; and obtained summary judgment on trade-secrets claims allegedly worth $1 billion.
- Yale Law School
(J.D., 2007)- Yale Journal for International Law:
- Submissions Editor
- Yale Journal for International Law:
- University of Richmond
(B.A., summa cum laude, Interdisciplinary Studies, 2004)- Mace Award 2004 to the most outstanding graduating student
- C. Evans Award for Outstanding Achievement in Scholarship
- Phi Beta Kappa
- The State Bar of New York
- The State Bar of California
- United States Court of Appeals:
- Ninth Circuit
- United States District Court:
- Central District of California
- Albanian
- German
- Debevoise & Plimpton, LLP:
- Associate, 2007-2010
- Associate, 2007-2010
- UN Commission on International Trade Law, Vienna, Austria:
- Visiting Scholar on International Commercial Arbitration issues, worked on revision of UNCITRAL Arbitration Rules, 2007
- Daily Journal's "Top Women Lawyers", 2026
- Chambers USA, Privacy & Data Security - Band 3, 2026
- Legal 500 USA, Media, Technology, and Telecoms: Cyber Law (including Data Privacy and Data Protection), “Recommended Lawyers”, 2023-2026
- Los Angeles Business Journal’s "Top 100 Lawyers", 2025
- Lawdragon 500 Leading Global Cyber Lawyers for Data Privacy & Security Litigation, 2024-2025
- Southern California “Rising Star,” 2014-2018
- Southern California “Top 50 Up-And-Coming Women Attorneys,” 2017
- "The CIPA Revolution? Testing Section 638.51 Claims in the Digital Age," Reuters (2025)
- "BIPA's Statutory Exemptions Post-Healthcare Ruling", Law360 (2024)
- “Potential Defendant Strategies Amid Calif. Privacy Questions”, Law360 (2024)
- "Reading The Tea Leaves of the FTC's Privacy Rulemaking", Law360 (2023)
- “A Wave of New Data Privacy Suits Tests Novel Theories”, Client Alert (2022)
- “The ADPPA May Be Coming: Assessing the Potential New Federal Privacy Regime”, Client Alert (2022)
- "2022 Data Privacy Suits Tested New Liability Theories", Law360 (2022)
- Inside the Proposed “New York Privacy Act”, New York Law Journal (2020)
- “US Outlook: Top Privacy Questions For Businesses Amid New Coronavirus Outbreak”, Client Alert (2020)
- "US Outlook: Cybersecurity Legal Implications For Businesses Amid New Coronavirus Outbreak", Client Alert (2020)
- Expert Analysis: "A Developing Patchwork Of Privacy Legislation In Washington", Law360 (2020)
- Expert Analysis: "A Brief Guide To Federal And State Cybersecurity Enforcement", Law360 (2020)
- Class Action Litigation Conference Speaker, Los Angeles, California (2019)
- Lessons from the Kosovo Status Talks: on Humanitarian Intervention and Self-Determination, 32 YALE J. INT’L LAW 255 (Essay)
- "Movie Camera Makers Settle Trade Secrets Suit Over Hacking", Law360 (2013)