Missouri Website Tracking, Privacy & Wiretap Litigation

Published by Crandall Consulting · Informational litigation intelligence · Last intelligence update: October 12, 2026

Lawsuits, demand letters, tracked matters, and reported claims are counted separately and are not interchangeable. Last intelligence update: October 12, 2026.

Current Landscape

The supplied data classifies Missouri’s website-tracking litigation risk as moderate and lists one lawsuit, zero demand letters, and zero additional tracked matters. These counts describe the supplied dataset, not all Missouri litigation.

The identified lawsuit is State of Missouri ex rel. Attorney General Andrew Bailey v. H&R Block Inc., TaxSlayer LLC, and TaxAct Inc. The Attorney General’s petition, filed in the Circuit Court of St. Louis City, alleges that the defendants used website pixels to transmit sensitive personal, financial, and tax-return information to Meta, Google, and potentially other entities without customer consent. It asserts Missouri Merchandising Practices Act claims and seeks injunctive relief, penalties, restitution, and other equitable relief. The excerpt supplies no holding, standing determination, procedural ruling, or subsequent case status; whether the action remains pending cannot be confirmed.

The supplied statute list identifies the Missouri Wiretap Act (Mo. Rev. Stat. § 542.402), but the case summary does not establish that the petition asserts a claim under that statute. The broader technology list includes pixels, session replay, fingerprinting, and form-input tracking, among other tools. That list alone does not establish that each technology is involved in the identified lawsuit or has been considered by a Missouri court.

Current Litigation Activity

Current litigation component: 17/100.

Important New Filings

• State of Missouri ex rel. Attorney General Andrew Bailey v. H&R Block Inc., TaxSlayer LLC, and TaxAct Inc.

Current Filing & Litigation Trends

The supplied dataset identifies one Attorney General-led lawsuit and no demand letters or additional tracked matters. This limited record does not establish a statewide filing trend, the prevalence of private litigation, or likely future filings involving session replay, fingerprinting, or other technologies.

Precedent Landscape: What Courts Have Decided

Precedent component: 50/100. Litigation activity (volume) and precedential risk (authority of decisions) are measured separately — a high number of filings does not by itself indicate strong plaintiff-favorable binding precedent.

No decided precedent with a clear substantive direction is currently tracked.

A settlement is not a binding precedent, and a procedural dismissal (for example, for lack of standing) is not a holding that the underlying technology is lawful. Where courts disagree, that disagreement is reflected rather than resolved.

Current Laws & Relevant Statutes

• Missouri Wiretap Act — Mo. Rev. Stat. § 542.402 · private right of action · statutory damages

Regulatory Enforcement

Regulatory enforcement component: 0/100. Regulatory enforcement (agency investigations, sweeps, settlements, guidance, rulemaking) is tracked separately from private litigation and is never counted as a lawsuit.

No specific enforcement actions are itemized for this jurisdiction.

Agency Guidance

Regulatory trend: insufficient data.

Global Privacy Control / Opt-Out Signals

Limited data

GPC / universal opt-out exposure component: limited data — this component is excluded from the overall risk guideline for this jurisdiction until researched (remaining components are reweighted accordingly).

GPC / universal opt-out privacy rights are a different legal theory from wiretap / interception litigation, though both affect third-party website data flows.

Learn more about Global Privacy Control → · How GPC posture is weighted in the risk guideline →

Changes Coming in the Next 24 Months

Forward-looking (24-month) component: 0/100. Enacted changes with future effective dates may affect a jurisdiction's forward-looking risk, but are not presented as currently enforceable.

Coming Into Effect (Enacted)

No enacted future-effective laws identified in our latest research cycle.

Legislation to Watch (Pending)

No pending website-privacy legislation identified for this jurisdiction in our latest research cycle.

Important Cases & Tracked Matters

Technologies Appearing in Claims

• Website tracking pixels
• Meta pixels
• Google pixels
• MyChart patient portal
• Meta Pixel
• Instagram
• Facebook
• Algorithmic feeds
• Age assurance
• Push notifications
• Beauty filters
• Visible like counts
• Session replay
• Digital fingerprinting
• Keystroke and input-field recording
• session replay
• Microsoft Clarity
• Facebook Pixel
• form tracking
• cross-site profiling
• Form-input tracking
• Cookies
• Device fingerprinting
• Cross-site profiling

Historical Risk Guideline

What Businesses Should Review

Organizations can review which tracking tools operate on their websites, what information those tools transmit, and which third parties receive it, particularly on pages handling tax or financial information. Compare observed data flows with public notices, consent flows, and vendor configurations. Where other technologies in the supplied list are deployed, review their actual behavior rather than assuming they are implicated in this lawsuit. Any assessment of the case’s legal implications should also confirm the asserted claims and obtain subsequent court records, since the supplied excerpt contains no rulings or updated status.

Data Quality

6 source(s), 6 primary; evidence is fresh.

Methodology & Limitations

Statistics on this page are generated by the Crandall Consulting litigation intelligence engine. Publicly available sources (court and government materials, recognized legal press, professional analysis, and industry reports) are discovered through automated web research, classified into a tiered source hierarchy, and reduced to structured facts with full source provenance. Risk guidelines and evidence-confidence scores are computed by a deterministic formula from those stored facts — never by an AI model directly (AI explains findings; it never assigns a score). Counts labeled "tracked" reflect matters identified in our source set and are not official court statistics.

The overall risk guideline is composed of six deterministically weighted components: statutory structure (25%), current litigation activity (25%), prior precedent (18%), GPC / universal opt-out posture (15%), regulatory enforcement (9%), and the forward-looking 24-month horizon (8%). When a state's GPC status is limited data, that component is excluded and the remaining weights are renormalized — limited data never reads as lower exposure. Current litigation activity is measured over recent windows (velocity), not lifetime volume, so a jurisdiction with high historical activity but declining current filings reflects that decline. Litigation activity (volume) and precedential risk (authority of decisions) are measured separately. Full details are on the methodology page.

Sources

• Doe v. SSM Health Care Corporation, No. 23-3138: Opinion Affirming Remand of Missouri Website Health-Data Claims — U.S. Court of Appeals for the Eighth Circuit · Tier A (Primary authority)
• Missouri Attorney General Petition Against H&R Block, TaxSlayer, and TaxAct Concerning Website Tracking Pixels — Missouri Attorney General · Tier A (Primary authority)
• Utah Secures $12.2 Billion Settlement With Meta Over Child Safety Practices — Governor Spencer J. Cox · Tier A (Primary authority)
• Ann Jones v. Bloomingdales.com, LLC; Ann Jones and Jane Tenzer v. Papa John's International, Inc. — U.S. Court of Appeals for the Eighth Circuit · Tier A (Primary authority)
• In Re: Zillow Group, Inc. Session Replay Software Litigation — Document 119 — U.S. District Court for the Western District of Washington, via Justia · Tier A (Primary authority)
• In Re: Zillow Group, Inc. Session Replay Software Litigation — Document 119 — U.S. District Court for the Western District of Washington (via Justia) · Tier A (Primary authority)

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