Intellectual property (IP) disputes have taken on new urgency as courts across the country grapple with how creative works are used, shared, and protected in today’s digital landscape. The U.S. Supreme Court’s recent decision in a major copyright infringement case underscores just how high the stakes can be for creators, businesses, and anyone relying on and seeking to protect copyrighted material in their daily operations. For Florida companies navigating a fast‑moving and highly competitive market, understanding the implications of this ruling is essential.
At The Lomnitzer Law Firm P.A., our intellectual property litigation attorneys in Florida help individuals, families, and businesses interpret these developments, assess their exposure, and strengthen their strategies for protecting original works. By understanding how the Supreme Court’s decision in Cox Communications, Inc. et al. v. Sony Music Entertainment et al. (No. 24-171) reshapes key aspects of copyright law, businesses and creators can make informed choices that safeguard their rights and reduce the risk of costly disputes.
On March 25, 2026, the U.S. Supreme Court issued a unanimous decision reversing the U.S. Court of Appeals for the Fourth Circuit’s decision finding that Cox, an internet service provider (ISP), had contributory liability for copyright infringement by its users. According to the Court, an ISP is not liable for copyright infringement merely for providing a public service, even if it knows that some users will commit copyright infringement.
Instead, the Court ruled that contributory liability exists only where an ISP intends its services to be used for infringement. A party may establish the requisite intent in two ways:
The Court concluded that Cox had neither induced nor tailored its services to infringement and, as a result, had no contributory liability for its users’ infringement. In fact, Cox had specifically taken steps to discourage infringement by including a prohibition against infringement in its contractual terms with its users. Cox also issued warnings, service suspension, and account terminations for some users who engaged in repeated infringement. Furthermore, the Court noted that Cox neither advertised, marketed, nor promoted its services as mechanisms for piracy.
Writing for the unanimous Court, Justice Clarence Thomas rejected Sony’s argument that a lack of contributory liability for ISPs in these circumstances would negate the purpose of the Digital Millennium Copyright Act (DMCA) safe harbor. That safe harbor provides ISPs with a defense against secondary liability for their users’ infringement in certain situations. Thomas reasoned that the DMCA does not create any new basis for liability, but only new defenses against liability for qualifying ISPs in some cases.
Cox constitutes the Supreme Court’s latest attempt to reconcile secondary copyright liability with technological advances. The ruling builds on previous cases such as Sony Corp. v. Universal City Studios (1984), in which the Court held that selling VCRs did not show the necessary intent for contributory infringement where the devices had multiple and substantial non-infringing uses. In contrast, the Court found in MGM Studios v. Grokster that when a provider markets services to known infringers, builds a business model based on copyright infringement, and fails to implement filtering tools, secondary liability for copyright infringement may exist.
Nonetheless, the Court’s Cox decision is demonstrably narrow. First, the Court addresses only contributory liability, not vicarious liability, another recognized doctrine of secondary liability. It also does not address any form of direct liability. Second, the Court’s holding is extremely fact-specific. The Court applied its test for determining whether Cox intended its users to engage in copyright infringement and, based on the ISP’s overall activities and type of services offered, found that Cox had no such intent. The fact that Cox did not terminate services for all known infringers alone was insufficient to establish the necessary intent for contributory liability. However, in other cases, facts such as knowingly providing services to repeat infringers could support an opposite conclusion.
Justices Sonia Sotomayor and Ketanji Brown Jackson concurred with the majority’s judgment but disagreed with their rationale. More specifically, the two justices pointed out that contributory and vicarious liability may not be the only doctrines of secondary liability. Rather, various common-law theories may expand the scope of secondary liability, such as aiding and abetting.
Therefore, Sotomayor opined that by categorically narrowing the scope of secondary liability, the majority opinion needlessly removed any meaningful incentive for providers to seek the safe harbor protection of the DMCA. By failing to recognize other forms of secondary liability, the majority diluted the impact of the DMCA’s safe harbor by encouraging service providers to implement anti-infringement policies.
Not necessarily. The Court’s ruling in Cox v. Sony clarified that an ISP is not contributorily liable solely because some users engage in infringement. However, the decision does not grant blanket immunity. ISPs may still face liability if their conduct shows intent to foster infringement — for example, by marketing services to known infringers, ignoring repeat‑offender policies, or designing systems with no meaningful non‑infringing purpose.
The decision reinforces the importance of understanding how online intermediaries handle infringement. While ISPs may face a narrower path to contributory liability, content owners still need to monitor unauthorized use, document infringement, and use available enforcement tools — including DMCA takedown procedures. For businesses that distribute creative works online, the ruling highlights the need for proactive IP strategies, clear licensing terms, and consistent enforcement practices to maintain control over their content.
Potentially. Although the majority emphasized that the DMCA safe harbor provides defenses rather than new forms of liability, the concurring justices raised concerns that narrowing contributory liability could reduce service providers’ incentives to comply with DMCA requirements. Future courts may grapple with how to balance these competing views, especially in cases involving emerging technologies or platforms that blur the line between passive service providers and active participants in content distribution.
In the wake of the Supreme Court’s recent copyright ruling, creators and businesses face an even more complex landscape that can quickly lead to costly disputes. Whether you are licensing your own creative assets, negotiating rights to use another party’s technology, or expanding your brand through strategic partnerships, having knowledgeable counsel is essential.
The Florida intellectual property litigation attorneys at The Lomnitzer Law Firm P.A. help clients evaluate their options and take proactive steps to protect the rights they’ve worked hard to build. Call our office at (800) 853‑9692 or contact us online to begin developing a strategy that supports and protects your IP in this evolving legal environment.
