Pfizer Website Cookie Tracking Wiretap Class Action Lawsuit, Did Their Website Track You Even After You Said No?

Pfizer is facing a class action lawsuit filed in New York federal court alleging the pharmaceutical giant secretly tracked visitors on its website using Google advertising tools — even after those visitors explicitly declined cookies. Plaintiff Paul Nakamura, a California resident, filed the suit after visiting Pfizer’s website in July 2025 to research COVID-19 vaccines and clicking “Decline All” on the site’s privacy banner. The lawsuit accuses Pfizer of continuing to track him anyway.

Quick Facts: Pfizer Website Tracking Class Action Lawsuit

Field	Detail
Lawsuit Filed	May 2025
Defendant	Pfizer Inc.
Alleged Violation	Federal Wiretap Act (18 U.S.C. § 2511), California Invasion of Privacy Act (CIPA), California consumer protection statutes, common law privacy
Who Is Affected	U.S. website visitors who visited Pfizer.com, interacted with the cookie/privacy banner, and did not accept tracking tools
Current Court Stage	Newly filed — pre-litigation phase
Court & Jurisdiction	U.S. District Court, Southern District of New York
Lead Law Firm	TBD — not yet confirmed in available public filings
Next Hearing Date	TBD — case newly filed, no hearing scheduled yet
Official Case Website	TBD — no case-specific site established at this stage
Last Updated	May 23, 2026

What Is the Pfizer Cookie Tracking Lawsuit Actually About?

Pfizer’s website displayed a privacy banner and cookie preference settings that told users they could reject tracking by selecting “Decline All” or disabling optional analytics and marketing cookies. The lawsuit alleges the website began deploying tracking tools immediately when users visited the site — before they could even interact with that banner.

The complaint also claims Pfizer continued transmitting users’ information to third-party tracking companies even after users expressly rejected tracking and non-required cookies. Pfizer integrated tracking technologies connected to Google Ads and Google DoubleClick into its website to monitor user activity for advertising and analytics purposes.

The tracking tools allegedly intercepted pages users viewed, links clicked, browsing activity, device and browser information, approximate geolocation data, and other identifiers — information that could allow users to be tracked across sessions and multiple websites. The lawsuit argues this violates the federal Wiretap Act (18 U.S.C. § 2511), which prohibits the unauthorized interception of electronic communications, along with several California privacy statutes. Think of it this way: Pfizer told you the door was locked, but the complaint says they left a hidden camera running regardless.

This type of lawsuit is part of a broader wave of consumer privacy class actions targeting companies that use cookies and pixel tracking tools without proper consent. For context on how similar cases have played out, see our breakdown of the Yahoo ConnectID tracking class action and the Perplexity AI incognito privacy lawsuit, both involving similar allegations of tracking users who tried to opt out.

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Are You Part of the Pfizer Cookie Class Action Lawsuit?

Here is how to know if this lawsuit includes you. The plaintiff seeks to represent a broad nationwide class, and the criteria are straightforward.

You may be part of this class if you:

• Visited Pfizer.com at any point during the applicable limitations period
• Saw the privacy/cookie banner on Pfizer’s website
• Clicked “Decline All,” disabled optional analytics cookies, or otherwise rejected non-essential tracking
• Are a U.S. resident (California residents have additional claims under state law)
• Did not affirmatively accept or consent to tracking tools

You are likely NOT included if you:

• Clicked “Accept All” on Pfizer’s cookie banner
• Never visited Pfizer’s website during the relevant period
• Have already pursued an individual privacy claim against Pfizer for this same conduct

If you visited Pfizer’s website to research vaccines, medications, or health information and rejected cookies, you should monitor this case closely. Your browsing activity — including what medical topics you looked up — may have been collected without your consent.

What Are the Pfizer Plaintiffs Seeking in This Lawsuit?

The plaintiffs are not asking for a small fix. Nakamura seeks to represent a nationwide class of users who visited Pfizer’s website, interacted with the privacy banner or cookie settings, and did not affirmatively accept tracking tools during the applicable limitations period.

The complaint seeks monetary compensation for damages caused by the alleged unauthorized interception and sharing of personal browsing data. Under the federal Wiretap Act, successful plaintiffs can seek actual damages or statutory damages, plus attorneys’ fees. Under California’s Invasion of Privacy Act (CIPA), statutory damages of $5,000 per violation are available — a figure that, multiplied across potentially millions of website visitors, could mean significant exposure for Pfizer.

The lawsuit also seeks injunctive relief, meaning the plaintiffs want the court to order Pfizer to stop the tracking practices entirely and fix how its cookie consent tools actually function. No specific dollar amount has been confirmed in publicly available filings at this stage.

What Should You Do If You Were Affected by Pfizer’s Tracking?

Right now, you do not need to file anything or hire a class action lawsuit attorney to be included. Most class members are automatically part of a class action unless they opt out later — and since no settlement or opt-out period exists yet, there is nothing to sign or submit today.

Here is what you can do right now:

• Save any records that confirm you visited Pfizer.com, such as browser history, search history, or any emails from Pfizer
• Document your cookie choices if you have a habit of declining tracking tools — this could be relevant to your inclusion in the class
• Monitor this case through PACER (the federal court’s public records system) at pacer.uscourts.gov using “Nakamura v. Pfizer” as your search
• Consult a consumer rights lawyer if you believe you have an individual privacy claim that goes beyond this class action

Do not expect a claim form or payout soon. This case was just filed and is in its earliest stage. If a settlement is reached, AllAboutLawyer.com will update this article immediately with filing instructions.

Pfizer Cookie Tracking Lawsuit Timeline

Milestone	Date
Plaintiff Visited Pfizer.com, Declined Cookies	July 2025
Lawsuit Filed in New York Federal Court	May 2025
Class Certification Motion	TBD — not yet filed
Last Major Court Ruling	TBD — case newly filed
Next Scheduled Hearing	TBD — no hearing set yet
Expected Settlement Timeline	TBD — litigation in earliest stage; class action settlements typically take 1–3 years

Frequently Asked Questions

Is there a class action lawsuit against Pfizer for website tracking?

 Yes. Paul Nakamura filed a class action lawsuit against Pfizer Inc. in New York federal court alleging Pfizer’s website tracked users via Google Ads and DoubleClick tools even after those users clicked “Decline All” on the site’s cookie privacy banner.

Do I need to do anything right now to be included in the Pfizer lawsuit?

 No. Class members are typically included automatically. You do not need to register, file a form, or contact anyone. Monitor the case on PACER using “Nakamura v. Pfizer” and watch this page for updates when a settlement or claim period is announced.

When will a settlement be reached in the Pfizer cookie tracking case? 

TBD — the case was just filed and no settlement negotiations have been publicly reported. Federal privacy class actions of this type typically take one to three years to resolve. There is no payment available at this time.

Can I file my own privacy lawsuit against Pfizer instead of joining this class action? 

Yes. If you believe your damages are significant, you have the right to pursue an individual claim separately. You should consult a consumer rights lawyer or data privacy attorney to understand your options before any statute of limitations expires.

How will I know if the Pfizer lawsuit settles? 

You will likely receive a mailed or emailed notice if you are part of the certified class and a settlement is reached. You can also monitor the Southern District of New York court docket via PACER, or check back here — we will update this article the moment any settlement is filed.

Why does it matter that Pfizer’s website tracked medical searches specifically?

 Medical and health information carries a higher level of privacy sensitivity. Someone researching COVID-19 vaccines or drug side effects has a reasonable expectation that their health queries stay private. The complaint argues that tracking this type of sensitive browsing activity — and sharing it with advertisers — causes real harm, not just a technical legal violation.

What law did Pfizer allegedly break?

 The complaint accuses Pfizer of violating the federal Wiretap Act, California privacy laws, California consumer protection statutes, and common law privacy protections. The federal Wiretap Act (18 U.S.C. § 2511) is a criminal and civil statute that prohibits intercepting electronic communications without authorization. California’s Invasion of Privacy Act adds state-level protections with per-violation statutory damages.

Sources & References

• Nakamura v. Pfizer Inc. — U.S. District Court, Southern District of New York (filed May 2025) — pacer.uscourts.gov
• 18 U.S.C. § 2511 — Federal Wiretap Act (Electronic Communications Privacy Act) — law.cornell.edu
• California Invasion of Privacy Act (CIPA), Cal. Penal Code § 631 — leginfo.legislature.ca.gov

Prepared by the AllAboutLawyer.com Editorial Team and reviewed for factual accuracy against publicly available court reporting and federal law citations. Last Updated: May 23, 2026.

Disclaimer: This article is for informational purposes only and does not constitute legal advice. For advice about your specific situation, consult a qualified attorney.