When providers face copyright liability
Cox Communications v. Sony Music Entertainment
In brief
Cox won on the liability question: the Court overturned the Fourth Circuit’s ruling (reversed it) and sent the case back to the lower court (remanded it), deciding that knowledge and continued service alone did not make Cox contributorily liable.
- Where it stands
- Decided
Decided 9-0 · March 25, 2026 · Opinion by Justice Thomas
- What it’s about
- The Supreme Court unanimously ruled for Cox Communications, holding that an internet provider is not contributorily liable for users’ copyright infringement merely because it knew some subscribers were infringing and continued to provide service.
- Who it affects
- The ruling means knowledge of user infringement and continued internet service alone are not enough to make a provider legally responsible.
Summary: written with AI from the case record.
What it's about
The Court held that liability requires intent to promote infringement, shown by inducing it or providing a service tailored to infringement; Cox did neither, so the Fourth Circuit’s judgment was reversed and the case remanded.
The case sits in the broader debate over when online services should be legally responsible for users’ copyright violations.
Question presented
Can an internet service provider be held liable, and found to have acted willfully, for copyright infringement just because it knew users were infringing and did not terminate their access?
What the Court decided
Holding
The provider of a service is contributorily liable for a user’s infringement only if it intended that the provided service be used for infringement, which can be shown only if the party induced the infringement or the provided service is tailored to that infringement; Cox neither induced its users’ infringement nor provided a service tailored to infringement; accordingly, Cox is not contributorily liable for the infringement of Sony’s copyrights. 93 F. 4th 222, reversed and remanded.
- Result
- Reversed
The vote
- Joined the judgment
- Concurred in a separate opinion
- Wrote an opinion
- Majority · 7joined the Court's opinion
What's next
The case now returns to the Fourth Circuit, which will handle further proceedings under the Supreme Court’s rule. Lower courts should look for intent to promote infringement through encouraging it or providing a service tailored to it, not knowledge and continued service alone.
Why it matters
A provider can face that responsibility only if it intended the service to be used for infringement, shown by inducing (encouraging) infringement or tailoring the service for that purpose.
Docket activity
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AI analysis generated: Decision Record
Case data updated: summary, question_presented, generation_metadata
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Judgment REVERSED and case REMANDED. Thomas, J., delivered the opinion of the Court, in which Roberts, C. J., and Alito, Kagan, Gorsuch, Kavanaugh, and Barrett, JJ., joined. Sotomayor, J., filed an opinion concurring in the judgment, in which Jackson, J., joined.
Opinion added: Opinion of the Court - T
More questions
- What did the Supreme Court decide in Cox Communications v. Sony Music?
- The Court ruled for Cox, deciding that knowledge of users’ infringement and continued service alone did not make Cox legally responsible.
- How can an internet provider become responsible for users’ copyright infringement?
- A provider must intend its service to be used for infringement, shown by inducing (encouraging) infringement or tailoring the service for that purpose.
- Was knowledge of infringement enough to make Cox responsible?
- No. The Court said Cox neither induced users’ infringement nor provided a service tailored to infringement.
- What happens to the case after the Supreme Court’s ruling?
- The case returns to the Fourth Circuit for further proceedings under the Supreme Court’s rule.
Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.