October Term 2025 · Docket 24-171

Should a broadband provider be liable for its users' copyright infringement?

Sony Music Entertainment argues Cox should be liable for its users' copyright infringement. Cox says it provides basic internet infrastructure and should not bear that responsibility.

Official caption
Cox Communications v. Sony Music Entertainment
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Verified source milestones

  1. — An official oral-argument transcript was verified.
  2. — An official oral-argument transcript was verified.
  3. — An official Court opinion was verified.

The arguments, in order

This case may have been argued more than once. Each entry below uses that session's official transcript. Later arguments do not erase earlier ones.

  1. Argument 1 ·

    What happened at the argument

    Sony's advocate says liability extends to those who induce or cause infringement.

    Cox's advocate says the lower court's ruling has no legal basis.

    Justice Thomas asked whether the rule should be broad or narrow.

    Chief Justice Roberts asked whether Cox's measures exceed what the law requires.

    Read the official transcript for this argument · Official argument details

    Sources used for this argument breakdown

A citizen's guide to the whole case

What this case is about

Sony Music Entertainment says Cox Communications should be liable for its users' copyright infringement. Cox says it merely provides basic internet infrastructure. Cox argues no tort or copyright theory supports holding it responsible.

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How the case got here

The Supreme Court heard oral argument in this case on December 1, 2025.

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What each side wants

Sony Music Entertainment wants the Court to hold that providers who contribute to infringement can be liable.

Cox Communications wants the Court to reject that theory and affirm its position.

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What each side says

Sony's advocate says liability extends to those who induce or cause infringement.

Cox's advocate says the lower court's ruling has no legal basis.

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What the justices asked

Justice Thomas asked whether the rule should be broad or narrow.

He also asked how the rule would apply to social media platforms.

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Why it matters

Chief Justice Roberts asked whether Cox's measures exceed what the law requires.

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What happens next

This article currently covers the argument record. Use the official docket link for later case activity.

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Official Court provenance

Official docket and case history · Official Supreme Court oral-argument detail page

Verified official opinions and orders

Title and summary sources

Revision history

  1. Revision 1 · Post Opinion ·

    Correction: Rewritten to the concise citizen-facing editorial standard.

  2. Revision 2 · Post Opinion ·

    Correction: Migrated to the dated official Court activity contract without model use.

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