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Subpoenas, Court Orders and the ‘Cable Privacy Act’: Identifying Anonymous Online Posters

We have written about subpoenaing internet service providers (ISPs) for identifying information relating to internet protocol (IP) addresses used by their subscribers.  In that post, we mentioned that securing identifying information from cable operator ISPs generally requires obtaining a court order authorizing disclosure of the subscriber information. To briefly illustrate,...

Utilizing IP Addresses to Subpoena Internet Service Providers (ISPs)

The majority of online defamation is posted anonymously or pseudonymously. Thus, many cases require issuing subpoenas—including to internet service providers (ISPs)—to identify the unknown posters. This process often involves obtaining internet protocol (IP) addresses from an entity, in response to an initial subpoena; determining the ISPs that own the respective IP addresses...