Thomas Eric Loeser

Tom Loeser is Managing Counsel in the firm and licensed in California, Washington and the District of Columbia. Tom works primarily in the Seattle office but also from the Burlingame office, where he represents consumers in technology-related class action and other complex cases. Tom is a Martindale-Hubbel AV Preeminent Rated Superlawyer and member of Law Dragon’s 500 Leading Plaintiffs Consumer Lawyers and 500 Leading Plaintiffs Financial Lawyers. Mr. Loeser adds a hard science, and a high-technology career to his 26 years of litigation, including 19 years in class actions and five years as a federal cyber-prosecutor. Mr. Loeser’s technology career included an MBA, writing code for the Treasury at Microsoft, a financial analyst position at the Hewlett-Packard Company and technology licensing in Silicon Valley.

In 2002, Mr. Loeser was appointed an Assistant United States Attorney in Los Angeles where after two years of prosecuting all manner of federal crimes, he joined the elite Cyber and Intellectual Property Crimes Section. This role required years of training in the investigation and prosecution of hacking, computer intrusion, cyber-stalking, online child-predation, malware, cyber-extortion and data breach cases. The training was cutting edge, requiring Top Secret clearances, and it was ongoing throughout Mr. Loeser’s government service. Mr. Loeser resolved hundreds of criminal cases—including federal hacking, child predation and data theft cases—and brought over a dozen federal cases to trial and through appeal.

Mr. Loeser’s practice has included the prosecution and resolution of dozens of complex actions against the titans of industry, including social media, gaming, online messaging, national banks, insurers, builders, title companies, carmakers, mortgage lenders, trucking companies and nationwide retailers. Mr. Loeser specializes in the prosecution of cases that are not just complex because of the legal and procedural issues involved, but also because of the technological sophistication of the products, services or bad acts underlying the legal claims.

Mr. Loeser has worked extensively on many of the largest consumer class cases in U.S. history. These include legion auto defect cases such as the $10 billion Volkswagen “Clean Diesel” MDL and the related $1.3 billion Volkswagen Franchise Dealer litigation. Mr. Loeser has worked on dozens of privacy and data theft cases including the antitrust case against Meta for its abusive collection of consumer data, and leadership roles in the massive 2022 T-Mobile data breach case, the AT&T Data breach affecting 75 million past and present customers, the GM OnStar vehicle tracking litigation and cases against PayPal, Rakuten and RetailMeNot for theft of commissions due online influencers. Mr, Loeser’s role in these cases touches on all aspects of litigation, including leadership, strategy, discovery, depositions, legal briefing and settlement.

Mr. Loeser’s work has garnered praise from the plaintiffs class action bar, who regularly ask him to speak at class action conferences, and from judges, including Judge Beth Labson Freeman in San Jose who remarked on the record:

“It’s not simple, you make it look easy, and that's the art of what you do, Mr. Loeser, and the Court certainly appreciates the good work in this case, and in recognition of the many cases that your firm has handled over the years.”

Dean Sheikh et al v. Tesla, Inc. Final Approval of Settlement Hearing, The Honorable Beth Labson Freeman, United States District Judge for the Northern District of California San Jose Division.

Outside of work Tom enjoys time with his family cycling, skiing, snowboarding, surf-foiling, and in all manner of ocean activities.

Representative Matters

CPM Investigating Kootenai Health Data Breach

CPM Investigating the Anne Arundel Dermatology Data Breach

CPM Investigating ConnectOnCall Data Breach

CPM Investigating Pacific Healthworks and La Perouse Data Breach

CPM Investigating PayPal's Honey Browser Extension for Possibly Stealing Referral Fees

CPM Investigating Allegations of Unfair Practices Involving Conditional Scholarships Offered by Law Schools

CPM Is Investigating General Motors for Sharing Driving Behavior With Data Brokers Without Knowing Consent from Drivers

CPM Investigating NZXT’s Computer Rental Practices for Possible Consumer Fraud

CPM Investigating Doxo Billing Service Fraud

CPM Investigating Allstate’s Allegedly Illegal Driver Behavior Database

CPM Investigating Live Nation Data Breach

CPM Investigating New York University Data Breach

CPM Investigating Adobe for Deceptive Practices with Subscriptions and Inflated Termination Fees Preventing Consumers from Cancelling

CPM Investigating Ascension Health Data Breach

CPM Investigating HealthEquity Data Breach

CPM Investigates Finastra Technology, Inc. Data Breach

Rakuten Affiliate Commission Theft Litigation

CPM Investigating Stellantis, Owner of Jeep Wrangler and Gladiator, for a Defect Affecting Fire Hazards to Thousands of Car Owners

NZXT Computer Rental Fraud Litigation

CPM Investigating Massive Data Breach at Hot Topic and Torrid

CPM Investigating Allianz Life Data Breach

John Muir Health Drug Test Overcharge Litigation

Apple AI False Advertising Litigation

CPM Pursuing California Class Action Against Tesla for Allegedly Misleading the Public about its Full Self-Driving Capability Package

CPM is Investigating TikTok for Possible Violations of Federal Law in the Collection of Information About Children

CPM Investigating Major Discord Data Breach Affecting A Large Number of Discord Users and Children

CPM Investigating Grok

CPM Is Investigating Kroger Grocery Stores for False Sale Tag Prices

CPM Investigating Meta Smart Glasses Sharing User Video With Third Parties

Hyundai AutoEver America Data Breach Investigation

Crimestoppers Data Breach Investigation

CPM Investigating Oracle Data Breach

Doxo Online Bill-Pay Fraud Litigation

CPM is Investigating a Massive Data Breach at AssuranceAmerica

CPM Investigating Aflac Data Breach Affecting Millions of Insurance Customers

PayPal Honey Affiliate Commission Theft Litigation

CPM Investigating Hims & Hers Sharing Patient Medical Data With Third Parties

CPM Investigates Episource Healthcare Data Breach

RetailMeNot Affiliate Commission Theft Litigation

Honors & Recognitions

Martindale-Hubbell® AV Preeminent rating, 2015-2026

Lawdragon 500 Leading Lawyers in America, Leading Plaintiff Financial Lawyers, 2020-2026

Lawdragon 500 Leading Lawyers in America, Leading Plaintiff Consumer Lawyers, Lawdragon, 2019, 2025-2026

Lawdragon 500, Lawdragon, 2019

Washington Super Lawyers, 2016-2026

Top Attorneys in Washington, Seattle Met magazine, 2016-2019

Publications

20 Feb 2025

The Price of Modern Gold: Why Tom Loeser is Expanding Cotchett, Pitre & McCarthy’s Technology Group’s Offices in Seattle

In the News

12 Jun 2024

CPM Attorneys Recognized as 2024 Lawdragon 500 Leading Plaintiff Financial Lawyers