Supreme Court Unanimously Protects Internet Access in Landmark Copyright Ruling

The modern internet is a shared utility. A single Wi-Fi router often connects an entire family, a bustling coffee shop, a university dormitory, or even a rural community network. For years, a looming legal question threatened this infrastructure: if one person on a shared network illegally downloads a copyrighted movie or song, should the internet service provider (ISP) be forced to sever the connection for everyone else?[5]

On March 25, 2026, the United States Supreme Court delivered a definitive answer. In a unanimous 9-0 decision in Cox Communications, Inc. v. Sony Music Entertainment, the Court ruled that ISPs cannot be held liable for the copyright infringement of their users simply because they provide internet access and know that some piracy is occurring.[4]

The landmark ruling overturned a devastating lower-court decision that had slapped Cox Communications with a $1 billion jury verdict. By rejecting the music industry's attempt to turn broadband providers into the "internet police," the Supreme Court preserved open internet access for millions of Americans and fundamentally reshaped the landscape of digital copyright law.[3]

To understand the magnitude of the decision, it is necessary to examine the mechanics of the original lawsuit. Sony Music Entertainment and other major record labels employed a monitoring service called MarkMonitor to track peer-to-peer music piracy. Over a two-year period, this service sent Cox more than 163,000 infringement notices tied to specific Internet Protocol (IP) addresses.[3]

The music labels argued that because Cox knew these specific IP addresses were repeatedly used to infringe on 10,017 copyrighted works, the ISP had a legal obligation to terminate those accounts. When Cox only terminated a small fraction of the flagged accounts—preferring instead to issue warnings and temporary suspensions—Sony sued for contributory and vicarious copyright infringement.[4]

A federal jury initially sided with Sony, awarding an astonishing $1 billion in statutory damages. The U.S. Court of Appeals for the Fourth Circuit later upheld the contributory infringement charge, ruling that providing a service with the knowledge that it will be used for infringement is enough to create liability. This created a standard known as "material contribution," which sent panic through the telecommunications industry.[1]

The Supreme Court, however, entirely dismantled the Fourth Circuit's reasoning. Writing for the majority, Justice Clarence Thomas emphasized that an ISP is not liable as a copyright infringer "for merely providing a service to the general public with knowledge that it will be used by some to infringe copyrights."[4]

The Court established a strict two-prong test for secondary copyright liability. To be held liable for a user's actions, a platform must demonstrate clear intent to foster piracy. This intent can only be proven if the company actively "induced" the infringement, or if it sold a service specifically "tailored" to facilitate copyright theft.[3]

Because Cox's broadband service is overwhelmingly used for legal, commercially significant purposes—like remote work, education, and streaming—it did not meet this threshold. The Court noted that Cox did not market its internet service as a piracy tool, nor did it design its infrastructure to make illegal downloading easier.[3]

While the 9-0 vote presented a united front on the outcome, the legal reasoning featured a notable divergence. Justice Sonia Sotomayor, joined by Justice Ketanji Brown Jackson, wrote a concurring opinion. They agreed that Cox should win, but criticized the majority's rigid two-prong test.[4]

Justice Sotomayor argued that the Court should have relied on traditional common-law "aiding and abetting" principles rather than creating a narrow new framework. She pointed out that Cox escaped liability primarily because the infringement notices only identified IP addresses, not the actual human beings committing the piracy. Because Cox did not know exactly who in a household or dorm was infringing, it lacked the specific knowledge required for secondary liability.[3]

For digital rights advocates, the ruling is a monumental victory for consumer protection. The Electronic Frontier Foundation (EFF) and the Internet Society had warned that upholding the $1 billion verdict would force ISPs to aggressively disconnect vulnerable populations.[1][2]

Because IP addresses are often shared, a strict termination policy would result in mass digital evictions. A library could lose its internet access because of a single patron's download; a rural community network could be shut down over a teenager's file-sharing. The Supreme Court's decision ensures that internet access—now widely considered a basic human right—cannot be weaponized as a tool for copyright enforcement.[2][5]

The ripple effects of Cox v. Sony will extend far beyond broadband providers. Legal analysts note that the Court's high bar for "intent" will provide a vital shield for other technology companies, including cloud storage providers, social media platforms, and emerging generative AI services.[3][5]

Moving forward, copyright holders will face a much steeper climb when attempting to sue digital intermediaries. Rather than relying on automated notices and demanding that platforms police their own users, the entertainment industry will likely have to return to targeting individual infringers directly, or proving that a platform was explicitly designed to break the law.[3][5]