The U.S. Department of Justice (DOJ), alongside various organizations and businesses, has expressed support for Cox Communications’ appeal to the Supreme Court concerning a ruling that holds internet service providers (ISPs) liable for copyright infringements committed by their users. This development follows a series of legal proceedings that have significant implications for ISPs and their role in monitoring user activity.
In 2019, a jury in the Eastern District of Virginia found Cox Communications liable for copyright infringement by its customers, resulting in a $1 billion damages award. The case was initiated by over 50 music labels, including Sony Music Entertainment, Universal Music Group, and Warner Music Group, who accused Cox of failing to take adequate measures against subscribers illegally downloading music through peer-to-peer platforms like BitTorrent. The labels contended that Cox did not sufficiently address numerous copyright infringement notices and failed to terminate repeat offenders. ([reuters.com](https://www.reuters.com/sustainability/boards-policy-regulation/us-supreme-court-review-billion-dollar-cox-communications-copyright-case-2025-06-30/?utm_source=openai))
In February 2024, the Fourth Circuit Court of Appeals overturned the $1 billion damages award but upheld Cox’s liability for contributory copyright infringement. The appellate court determined that while Cox was not vicariously liable—meaning it did not profit directly from the infringements—it was still responsible for not taking appropriate action against known infringers. This decision prompted both Cox and the music labels to seek further review. ([reuters.com](https://www.reuters.com/sustainability/boards-policy-regulation/us-supreme-court-review-billion-dollar-cox-communications-copyright-case-2025-06-30/?utm_source=openai))
In May 2025, the DOJ filed an amicus brief recommending that the Supreme Court grant Cox’s petition for review. The DOJ argued that the Fourth Circuit’s decision was inconsistent with established contributory infringement precedents and could lead to ISPs terminating internet access for entire households or institutions based on allegations of infringement. The brief emphasized that such a precedent could have far-reaching consequences, potentially disrupting internet access for numerous non-infringing users. ([torrentfreak.com](https://torrentfreak.com/u-s-govt-backs-cox-in-landmark-supreme-court-battle-over-isp-piracy-liability/?utm_source=openai))
On June 30, 2025, the Supreme Court agreed to hear Cox’s appeal, setting the stage for a pivotal examination of ISP liability in cases of user-initiated copyright infringement. The Court’s decision to review the case underscores the legal and practical significance of determining the extent to which ISPs can be held accountable for the actions of their subscribers. ([reuters.com](https://www.reuters.com/sustainability/boards-policy-regulation/us-supreme-court-review-billion-dollar-cox-communications-copyright-case-2025-06-30/?utm_source=openai))
As the Supreme Court prepares to hear arguments in this case during its upcoming term, the outcome is poised to have substantial implications for ISPs, content creators, and consumers alike. The central question remains: to what extent should ISPs be responsible for policing the online activities of their users, and what measures are reasonable to prevent copyright infringement without unduly restricting internet access?