Can internet service providers or platforms be compelled to reveal my identity for alleged copyright infringement?

Checked on February 3, 2026
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Executive summary

Yes—under current U.S. practice, internet service providers and some online platforms can be compelled to disclose a subscriber’s identity in civil copyright cases: rights holders routinely use court-ordered subpoenas (the “John Doe” discovery process) to force ISPs to hand over names tied to IP addresses, and courts have repeatedly held ISPs and their treatment of infringement notices central to liability and disclosure disputes [1] [2] [3].

1. How copyright plaintiffs get names: the John Doe subpoena and ISP discovery

Copyright owners typically begin by filing a “John Doe” complaint identifying anonymous IP addresses alleged to have infringed, then applying for limited court-ordered discovery that requires the ISP to produce the subscriber’s contact information so the claimant can name or serve the individual in a later complaint; this is a well-established, supervised civil process that gives the subscriber notice and a chance to contest disclosure [1] [2] [3].

2. The statutory and procedural hooks: DMCA safe harbors, subpoenas and agent rules

The DMCA creates a safe-harbor regime that shields ISPs from direct liability if they follow notice-and-takedown procedures and maintain an agent to receive infringement notices, but the statute and subsequent case law also preserve plaintiffs’ ability to seek subpoenas for identifying information when infringement is alleged—courts have treated the subpoena power as an accepted route to compel ISPs to divulge customer identities for litigation [4] [2].

3. Recent court decisions reshaping who can be forced to act and why identity matters

A spate of high-profile appeals has sharpened the stakes: the Fifth Circuit affirmed that an ISP (Grande) could be liable for contributory infringement after ignoring infringement notices tied to specific IPs, a ruling that turned on the ISP’s knowledge and response rather than mere transmission of traffic [5] [6]; similarly, the Cox litigation—now squarely before the Supreme Court—asks whether continuing service to identified repeat infringers can amount to “material contribution,” a question that will affect both ISP liability and the pressure to disclose subscribers in discovery [7] [8].

4. Limits, defenses and the subscriber’s practical options when a subpoena arrives

Being the target of an ISP subpoena is not automatic guilt: subscribers can file timely objections in federal court, and some procedural protections exist (notice, opportunity to contest), but real-world options are narrow—attorneys can seek to keep identifying information under seal or challenge the subpoena’s scope, yet there is “very little” that prevents an ISP from ultimately turning over contact details if a court orders it [3] [9].

5. Accuracy, fairness and the policy fight over mass disclosure and disconnection

Rights holders argue that subpoena-driven disclosure is necessary to enforce copyrights at scale; ISPs and civil-liberty advocates warn of unreliable notice systems, false positives tied to shared or dynamic IPs, and draconian consequences—courts have echoed that tension, with judges and justices questioning whether forcing ISPs to cut service or expose large numbers of subscribers based on potentially shaky automated notices is appropriate [6] [1] [10].

6. Bottom line: when and how identity can be compelled

Practically speaking, an ISP or platform can be compelled by court order to reveal an account holder’s identity in a U.S. copyright lawsuit once a rights holder satisfies procedural requirements for discovery (John Doe complaint plus subpoena) and a judge rejects any timely objection; parallel doctrinal battles over whether ISPs must terminate service to repeat infringers or face contributory liability are influencing how aggressively plaintiffs pursue discovery, but they do not eliminate the basic subpoena route used to unmask alleged infringers [2] [1] [7].

Want to dive deeper?
How does the John Doe subpoena process work step-by-step in U.S. federal copyright cases?
What defenses can subscribers raise to block an ISP from disclosing their identity in a copyright subpoena?
How might the Supreme Court's decision in Cox v. Sony change ISP obligations to terminate service or disclose subscriber data?