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Influencers in Court: When Online Personalities Become Key Evidence

Written by Page Vault | Apr 21, 2025 12:00:00 PM

Influencers in Court: When Online Personalities Become Key Evidence

As social media continues to shape how we communicate and consume information, social media influencers hold substantial sway over public opinion and consumer behavior. But with that influence comes a growing wave of legal scrutiny. More and more, influencers are finding themselves at the center of legal disputes, where their online content—and the personas they’ve crafted—play a key role in court. This article examines several high-profile cases involving influencers, exploring the legal challenges around authenticity, the admissibility of digital content, and what these developments mean for the future of influencer marketing. 

The Expanding Role—and Risk—of Influencers Online

Influencers aren’t just internet personalities—they’re modern-day broadcasters with the ability to reach millions in real time. From product promotions and political messaging to lifestyle and financial advice, their content shapes conversations across the globe. Brands partner with them to amplify campaigns, while audiences rely on them for trust-based recommendations.

But with influence comes visibility—and with visibility, legal exposure. As influencer marketing grows, so do the legal risks. Allegations of deceptive endorsements, copyright infringement, and defamation are increasingly making their way into courtrooms. And in both civil and criminal matters, an influencer’s social media footprint—including posts, stories, live streams, and even deleted content—can become critical evidence.

Influencers operate across a wide range of platforms, including Instagram, TikTok, YouTube, X (formerly Twitter), and emerging spaces like Twitch and Threads. They span categories from micro-influencers with niche audiences to celebrities with global clout. Content types range from sponsored posts and product reviews to reaction videos and behind-the-scenes glimpses—each presenting unique evidentiary considerations in litigation.

Admissibility of Social Media Content in Court

As social media continues to influence communication, marketing, and commerce, its role in litigation has expanded—particularly in intellectual property (IP) disputes involving copyright, trademark, and trade dress claims. Courts routinely consider public posts, DMs, videos, and even deleted content as evidence, provided that it is obtained and authenticated in a legally acceptable manner.

For evidence to be admissible, it must satisfy key requirements:

  • Authentication: Meets Federal Rules of Evidence (FRE) 901 and 902 requirements. Demonstrating the content is what it claims to be. This can include witness testimony, metadata analysis, or platform verification.

  • Relevance: The content must be directly tied to the case’s claims or defenses.

  • Legality: Evidence must be collected without violating privacy laws, terms of service, or chain-of-custody protocols.

In IP-related cases, influencers’ posts—especially on platforms like Instagram, Facebook, and TikTok—can become critical to proving ownership, use in commerce, or consumer confusion. Courts may examine time-stamped promotional content, hashtags, product images, and archived post histories to assess infringement claims or fair use defenses.

🔍 Example: In Petunia Products v. Rodan & Fields, promotional Instagram content by influencer Molly Sims was central to a trademark infringement claim. Authenticating and preserving the content became a key factor in discovery and litigation strategy.

Notable Legal Cases Involving Influencers

1. Zuckerbrot v. Lande, Supreme Court of the State of New York, County of New York

  • Case Type: Defamation, Business Disparagement, Trademark Dilution

Summary: Tanya Zuckerbrot, founder of the F-Factor diet, sued wellness influencer Emily Gellis Lande for publishing over 4,500 Instagram posts alleging harmful effects of F-Factor products. The court addressed issues of defamation and trademark dilution, emphasizing the legal risks influencers face when making public allegations against brands.​

2. Nike, Inc. v. MSCHF Product Studio, Inc., United States District Court, Eastern District of New York 

  • Case Type: Trademark Infringement

Summary: Nike filed a lawsuit against MSCHF for releasing "Satan Shoes," modified Nike Air Max 97s containing satanic imagery and a drop of human blood, in collaboration with rapper Lil Nas X. The court granted a temporary restraining order, and the case settled with MSCHF agreeing to a voluntary recall. This case underscores the importance of brand protection and the legal implications of unauthorized modifications.​

2. Kardashian v. Cantu, Superior Court of California, County of Los Angeles

  • Case Type: Defamation

Summary: Kim Kardashian faced a defamation lawsuit after she mistakenly identified Ivan A. Cantu as a death row inmate convicted of double murder in Texas in an Instagram post. Although the post was deleted, Cantu claimed that the misidentification led to significant emotional distress and reputational harm. This case highlights the legal risks associated with sharing unverified information on social media platforms.​

3. Petunia Products, Inc. v. Rodan & Fields, LLC and Molly Sims, United States District Court, Central District of California

  • Case Type: Trademark Infringement

Summary: Petunia Products sued Rodan & Fields and influencer Molly Sims, alleging that the promotion of the "Brow Defining Boost" product infringed on their "Brow Boost" trademark. The case emphasizes the importance of due diligence by influencers when endorsing products to avoid potential trademark infringement claims.​

 

 

How Page Vault Supports Admissibility in Social Media Evidence

As a trusted provider for legal evidence collection, Page Vault enables attorneys to capture social media and web content in a court-defensible format. Our technology preserves:

  • Full-page captures with time-stamped metadata

  • Screenshots, videos, and interactive content

  • Deleted or disappearing posts (when captured proactively)

  • Chain-of-custody documentation

Whether preparing for a trademark dispute, a copyright enforcement action, or licensing breach, Page Vault ensures that social media evidence is preserved accurately and admissibly.

Recommended Resources:

These guides walk through platform-specific nuances (Facebook, Instagram, YouTube, etc.) and help attorneys understand how to collect content in a way that will stand up to courtroom scrutiny.

Broader Legal Implications for the Influencer Industry

Legal disputes involving influencers—especially around trademark misuse, copyright violations, and IP ownership—are setting important precedents for the industry. These cases don’t just impact individuals; they raise the stakes for brands, agencies, and legal teams involved in influencer partnerships.

As enforcement from agencies like the Federal Trade Commission (FTC) increases, so does the need for due diligence. Brands must ensure influencers follow disclosure rules, while influencers must understand the risks of using protected content or blurring lines between paid and organic promotion.

Credibility remains an influencer’s most valuable asset. With audiences becoming more discerning and legal standards tightening, a single misstep can erode trust—and with it, business opportunities.

Conclusion: Navigating Influence with Legal Awareness

In a legal environment where social media content is not only discoverable but also admissible in court, influencers are increasingly expected to operate with the same legal foresight as brands. Whether it's a trademarked hashtag, a disputed product image, or a deleted Instagram Story, any piece of digital content can be scrutinized in litigation.

The ability to preserve and authenticate this content—as facilitated by tools like Page Vault’s capture technology—is becoming essential. As seen in cases like Petunia Products v. Rodan & Fields, or influencer disputes where IP concerns drive litigation, the burden of proof often lies in the details of a post.

To safeguard their businesses, influencers and their legal teams should:

  • Establish clear IP ownership and licensing terms.

  • Maintain defensible archives of content and communications.

  • Adhere to FTC disclosure requirements.

  • Work with trusted vendors to capture and authenticate social media activity for compliance and defense.

The line between content creation and legal accountability is thinner than ever. Influencers who recognize this shift—and respond with transparency, diligence, and legal preparedness—will be better positioned to thrive in a rapidly evolving online world.