The US Supreme Court has handed a decisive defeat to Sony Music and other major record labels in their long-running effort to hold cable internet giant Cox Communications financially responsible for its customers' copyright infringement, a ruling that legal experts say will significantly reshape how secondary copyright liability is applied across the technology industry.
The Supreme Court ruled in Cox Communications v. Sony Music Entertainment that Cox is not liable under the Digital Millennium Copyright Act (DMCA) when its customers use broadband connections to download or upload pirated material. The decision resolves a dispute that has wound through the courts for years and closes the door on a legal theory that the music industry had wagered could force internet providers to act as enforcers against persistent pirates.
At the heart of the case was whether an ISP must terminate the accounts of customers repeatedly flagged for copyright infringement. Sony and its co-plaintiffs argued that once Cox received specific, repeated notices identifying infringing subscribers, continuing to provide those customers with internet service amounted to contributory infringement — that is, knowingly facilitating others' illegal activity.
A federal jury sided with Sony in 2019, awarding a staggering $1 billion in damages against Cox. However, that verdict was overturned by an appeals court in 2024. That court did give the labels a partial win, finding Cox guilty of contributory copyright infringement even while striking down the damages figure. The Supreme Court has now gone further, rejecting that contributory liability finding altogether.
The ruling is expected to offer meaningful legal protection not only to ISPs but also to a wider range of technology companies whose platforms and services can be used for both lawful and unlawful purposes. Legal observers note that the decision reinforces the principle that technology providers are not automatically responsible for policing how their infrastructure is used, so long as they are not directly and knowingly facilitating infringement.
For the music and entertainment industries, the outcome represents a significant strategic setback. Labels had pursued ISP liability as a lever to reduce online piracy at the network level, reasoning that cutting off repeat infringers' internet access would deter large-scale file sharing more effectively than chasing individual users. That approach has now been firmly rejected by the nation's highest court.
Cox, for its part, had maintained throughout the litigation that holding ISPs liable for their customers' conduct would set a dangerous precedent, effectively conscripting internet providers into a content-policing role that Congress never intended under the DMCA. The Supreme Court appears to have agreed with that framing.
The broader implications of the ruling are still being assessed by copyright attorneys, technology companies, and digital rights advocates. Secondary copyright liability — which includes both contributory and vicarious infringement theories — has long been a contested area of law, and the Court's decision is expected to influence ongoing and future lawsuits involving streaming platforms, cloud storage services, and other technologies with dual-use potential.
Analysis
Why This Matters
- The ruling significantly limits the legal exposure of ISPs and potentially other technology platforms to secondary copyright liability, affecting how content industries can pursue enforcement in the digital age.
- Consumers who use the internet for lawful purposes gain protection from blunt enforcement measures — such as account termination — that could have been triggered by unverified infringement notices.
- The entertainment industry will likely need to pursue alternative anti-piracy strategies, potentially pushing for legislative action or focusing more narrowly on direct infringers.
Background
The legal battle between major record labels and ISPs over piracy liability has unfolded over more than a decade, rooted in the DMCA's framework of safe harbours and secondary liability. The DMCA, enacted in 1998, was designed to balance the interests of copyright holders with those of internet infrastructure providers, establishing conditions under which ISPs could avoid liability for users' infringement.
A key mechanism in that framework was the so-called "repeat infringer" policy: ISPs were expected to have procedures for handling customers repeatedly accused of piracy. The music industry argued this required actual account termination; ISPs argued they had discretion in how to respond to infringement notices, which were often sent in bulk by automated systems and were not always accurate.
The Cox case became the flagship litigation for the labels' ISP strategy. After the landmark $1 billion jury verdict in 2019 — one of the largest copyright awards in US history — the case drew intense attention from legal scholars, technology companies, and civil liberties groups. A parallel case involving Charter Communications was also pursued by the labels, signalling an industry-wide push that has now been effectively halted.
Key Perspectives
Major Record Labels (Sony, Universal, Warner): The labels contend that ISPs profit from providing connectivity to users who engage in mass piracy, and that the industry has suffered enormous financial harm from online infringement. They view ISP cooperation as essential to meaningful enforcement and have long argued that DMCA safe harbours have been interpreted too broadly.
Cox Communications and ISPs: Cox maintained that treating ISPs as copyright police would fundamentally alter the open nature of the internet, burden providers with impossible monitoring obligations, and harm the millions of law-abiding customers who share connections with occasional bad actors. The company argued the DMCA's safe harbour provisions were designed precisely to protect this kind of passive infrastructure role.
Critics and Digital Rights Advocates: Groups such as the Electronic Frontier Foundation had warned that allowing broad ISP liability would incentivise over-enforcement, with ISPs terminating accounts on the basis of unverified, automated takedown notices to avoid legal risk — chilling lawful internet use in the process.
What to Watch
- Whether Congress responds to the ruling with legislative proposals to strengthen copyright holders' tools against online piracy, potentially revisiting DMCA safe harbour provisions.
- Ongoing litigation involving Charter Communications and other ISPs, which may now be reconsidered or settled in light of the Supreme Court's decision.
- How the ruling influences secondary liability arguments in cases involving cloud storage platforms, social media sites, and AI companies whose tools can be used to generate or distribute infringing content.