Although
Sony v. Cox and
Greer v. Moon both concern contributory copyright infringement by online platforms, there are strong arguments for why a decision in
Sony might not directly control or affect the outcome in
Greer. The most significant reasons relate to the factual differences, the specific legal issues under review, and the different legal precedent applied in each case.
1. Different defendants and types of "platforms"
The nature of the defendants' businesses is a key distinction.
- Sony v. Cox: The defendant is an internet service provider (ISP). ISPs provide the underlying internet connection and infrastructure that users may utilize for both legal and infringing purposes. The legal standard for contributory infringement applied to ISPs is shaped by the DMCA safe harbors, which were intended to balance liability with the need for a functioning internet. The ISP's role is largely passive, providing network access rather than managing or hosting specific content.
- Greer v. Moon: The defendants are a website operator and the website itself (Kiwi Farms). Websites are content platforms that actively host and manage user content, unlike ISPs. This distinction means the defendant's conduct and legal obligations are viewed differently by courts.
2. Different legal standards for "material contribution"
The type of behavior alleged as contributing to infringement is very different.
- Sony v. Cox: The core legal question revolves around whether an ISP's failure to terminate known repeat infringers constitutes "material contribution" to the infringement. Cox argues that simply failing to act is not enough, and that an ISP must take affirmative steps to foster the infringement.
- Greer v. Moon: The Tenth Circuit's decision focused on the website operator's alleged active, non-passive behavior. Moon did not merely permit infringement; he allegedly encouraged it by refusing a takedown notice and then mockingly reposting the correspondence on the site. This was viewed as an active step that encouraged infringement, distinguishing the case from passive platform activity.
3. Different legal precedent
The courts in each case relied on different Supreme Court precedents to reach their conclusions.
- Sony v. Cox: The ISP relies on precedent like the 1984 Sony v. Universal Studios case and the 2023 Twitter v. Taamneh case, arguing that providing general-purpose tools or infrastructure capable of non-infringing uses (like an internet connection) does not create liability.
- Greer v. Moon: The Tenth Circuit, in its ruling against Moon, looked at the operator's alleged encouragement of infringement. The court found that this conduct went beyond passively hosting content, which aligned with the Supreme Court's reasoning in the 2005 case MGM v. Grokster.
4. Different rulings on DMCA safe harbor
The Digital Millennium Copyright Act (DMCA) has been central to the litigation against Cox, but less so in
Greer.
- Sony v. Cox: A key issue has been whether Cox forfeited its DMCA safe harbor protections by failing to implement a repeat infringer policy.
- Greer v. Moon: The DMCA safe harbor was not a factor. The plaintiff's takedown notice was rejected by the site operator, and the court found the alleged acts of encouragement to be outside the scope of safe harbor protection.
The net result
The distinct facts and legal arguments mean that a Supreme Court ruling in
Sony v. Cox could be narrowly tailored to address the duties of ISPs under contributory infringement law without changing the outcome in
Greer. A ruling in
Sony might focus on the question of whether a purely passive or reactive failure to terminate access is enough for liability. In contrast, the
Greer case focuses on a web platform operator's active encouragement and defiance of takedown requests.