ACLU Celebrates Supreme Court Decision Promoting Free Expression Online
The Cox v. Sony decision promotes the public's free speech rights by assuring that an Internet service provider is not liable for failure to police online activity
WASHINGTON, D.C. -- Today, the Supreme Court decided in Cox v. Sony, a landmark copyright case, that internet service providers (ISPs) should have limited copyright liability for user behavior that infringes copyrighted materials. The decision is a win for freedom of expression online. An amicus brief on behalf of the American Civil Liberties Union, the ACLU of Virginia, and the Center for Democracy and Technology, authored by leading copyright scholars with the firm Lex Lumina, urged the court to limit the circumstances where service providers could be subject to secondary copyright liability last fall.
The Court reviewed a decision by the Fourth Circuit that inflicted massive penalties on an ISP that failed to routinely shut off Internet access for IP addresses based on a copyright holder’s mere accusation that the address had been used to infringe on copyrighted materials. In practice, that holding would have forced ISPs to shut off Internet access for entire families, businesses, hotels, airports, and libraries, all because of an allegation of infringement against one user. This kind of collective punishment has troubling implications for online speech.
“If defined too broadly, secondary copyright liability for internet-service providers can pose a serious threat to free speech online,” said Evelyn Danforth-Scott, staff attorney with the American Civil Liberties Union. “The ruling below gave internet service providers every incentive to shut off internet access first and ask questions later. In our increasingly connected and digital world, where we use the internet to speak, listen, research, and create, limiting this kind of liability helps safeguard all of our First Amendment rights.”
“First Amendment interests are at risk when an Internet service provider like Cox risks crippling liability just because a relative few of their customers are violating copyright law,” said Jennifer Granick, surveillance and cybersecurity counsel with the ACLU’s Speech, Privacy, and Technology Project. “Internet service providers can’t see or remove copyright infringing material moving through their system, and the ruling below would have forced them to block anyone using a flagged IP address from using the Internet. We’re pleased that this Court limited the scope of contributory copyright liability to protect people’s First Amendment interests in accessing the wealth of Internet-stored information and in making their voices heard online."
The case arose when several record companies and music publishers, including Sony Music Entertainment, sued Cox Communications, an Internet service provider, for not kicking users off their services who had allegedly used file sharing technologies like BitTorrent. In Sony’s telling, Cox’s failure to block IP addresses flagged by copyright holders contributed sufficiently to the end users’ infringing activities as to subject Cox itself to statutory copyright liability. A jury awarded Sony and its co-plaintiffs a billion dollars in damages, and in 2024, the Fourth Circuit Court of Appeals affirmed in part: It held that Cox Communications was liable for secondary copyright infringement because it hadn’t taken enough steps to disconnect users who were allegedly downloading pirated works.
The ACLU brief urged the Court to take a narrower view of secondary copyright liability by adopting the same contributory liability rules that apply in other contexts to make sure speech distributors don’t unduly constrain the marketplace of ideas. In Smith v. California, for example, the Court held that imposing criminal liability on a bookstore for selling obscene books would incentivize them to stringently self-censor, stripping the shelves bare to avoid any potential fines or punishment. Similarly here, broadly-defined secondary copyright liability would give ISPs a strong incentive to bar users from the Internet based merely on an unproved accusation of illegal activity at their IP address. As in Smith, the brief argued, passive inaction in the face of unverified complaints should not be a basis for liability, and in today’s ruling the Supreme Court agreed.
The brief, filed in September by the American Civil Liberties Union, the ACLU of Virginia, and the Center for Democracy and Technology, represented by co-counsel Lex Lumina LLP, Professors Chris Sprigman, Rebecca Tushnet, and Mark Lemley can be viewed here.
This case is a part of the ACLU’s Joan and Irwin Jacobs Supreme Court Docket.